Road Frames

The Zig Zag is All-City’s answer to what a Modern Endurance Steel Road Bike should be. Elegant and eye-catching, it’s a ripping-fast and efficient machine built to shield the rider from road chatter and unnecessary fatigue. Designed for speed, style, and maximum comfort, the Zig Zag allows riders to go further, faster, and have more fun. - A.C.E. Tubing — Our proprietary heat-treated, air-hardened, extruded steel tubing that we custom designed for riding and racing - Whisky No.9 RD+ carbon fork - A classic road silhouette blends with a contemporary road geo to balance power with comfort for long days in the saddle or attacks off the front - Clearance for 700c x 35mm tires without fenders; 700c x 32mm with fenders - Custom head badge, Signature dropouts, Signature brazed-on seat collar, pump peg, two bottle bosses, and hidden fender mounts

The Warakin Ti is an efficient, responsive, sprightly titanium bike that can handle any road in any weather. Using the progressive geometry of its Warakin Stainless predecessor, the Warakin Ti pairs unrivaled ride quality with the superior quality of titanium. It's a lightweight, durable, lively machine that will carry the rider to where they choose to go while enjoying every pedal stroke along the way. SUPERIOR TITANIUM The 3Al/2.5V B338 grade 9 titanium that we use for the Warakin Ti is the same titanium that has been a bicycle industry favorite for decades, and with good reason. Equal parts science and magic, titanium is durable, lightweight, lively, corrosion-resistant, and timeless. The tubing is seamless, butted, clean, and strong. It's because of the superior quality of titanium that we chose this material to lend to our heralded Warakin geometry as a bike that will endure the roughest roads in the harshest conditions and tell the stories for decades to come. EXTRA TIRE CLEARANCE If a bike is meant to ride any road in any condition, it needs to fit tires and wheels that will get you to and from your destination, while handling every bump along the way. The massive tire clearance of the Warakin Ti was built with this in mind. It'll fit 29" x 2.1" for that road that doesn't actually appear on the map, just as easily as 650b x 50mm for windy forest trails, or 700c x 35mm (or 700c x 50mm if you want a little extra) for your next gravel race. Because a frame that can last forever needs to have the ability to adapt to whatever the road (and the future) may bring. VERSATILITY Like all Otso bikes, the Warakin Ti sports our patented Tuning Chip rear dropout system, which allows the rider to lengthen or shorten the wheelbase by up to 20mm and raise or lower the bottom bracket by up to 4mm. For chunky gravel on remote roads, the longer wheelbase of the rear position is set for stability and comfort. For a quick spin around town or the CX course, the front position makes for snappy handling and agile control. The middle position? That's the best of both worlds. The Tuning Chip rear dropout system was designed because the bike should be just as versatile as its rider. TOP QUALITY Designed by the Otso engineering team, Warakin Ti frames are built by top fabricators in Taiwan and come with a five-year limited warranty. All bikes and frames are inspected and assembled at our headquarters in Minneapolis, MN USA. PROGRESSIVE GEOMETRY The progressive geometry of the Warakin Ti takes a page from the cross-country MTB playbook. Increased top tube length and a shorter stem maintain stack and reach while providing a lively ‘can-do’ attitude on rougher terrain. EXTRA MOUNTING OPTIONS Numerous braze-ons accommodate three bottles, fenders, racks, cable routing clamps, frame bags, and more. Mix in the Wolf Tooth B-RAD System to even further increase on-bike storage options. SUSPENSION-READY The geometry of the Warakin Ti includes an axle-to-crown measurement of 420mm, which allows for a shorter suspension fork.

Steeped with more than 50 years of frame-building heritage, innovation, exploration, and lots of riding, the classic lines of this beautiful steel frame and carbon fiber fork unite with modern building techniques and proven materials to deliver a contemporary bicycle that’s wonderfully comfortable for long days in the saddle, nimble and stiff enough to win the sprint for that sign, and adequately adaptable to endure roads that might lack proper pavement. The Road Logic Disc frame is built with a heat-treated and triple-butted Ritchey Logic tubeset designed specifically for the Road Logic. It features aggressively short-butted sections optimized for TIG welding that save weight and improve ride quality. The frameset also includes a Ritchey WCS Carbon Road Fork for precise handling and responsiveness. Updated for 2024, this modern classic now sports compatibility with Shimano’s newest Di2 semi-wireless groupsets. A new drive side dropout design allows for concealed wire routing from the battery in the seat tube, through the bottom bracket area into the chainstay where it makes a stealthy exit to the rear derailleur. But mechanical shifting fans, rejoice - the Road Logic Disc frame retains cable stops for mechanical groupsets. On the non-drive side chainstay sits a new one-piece truss design for flat mount brakes - providing as much stiffness and strength of previous mounts while reducing chainstay weight significantly. With purpose-driven design, unyielding attention to detail, and modern features, the new Road Logic Disc almost telepathically delivers an amazing ride experience unlike any other bike. It’s fast, nimble, comfortable, and perfectly suited for wherever your rides take you. - Heat-treated, triple-butted Ritchey Logic tube set features short-butted sections optimized to save weight and improve ride quality - Now compatibility with Shimano newest Di2 semi-wireless groupsets - Painted to match Ritchey full carbon fork - Forged and machined straight head tube - Standard road spacing on frame and fork - Fits tires up to 30c - Ritchey WCS Carbon Road Fork included - 12x142 thru axle (included with frame) - Logic Zero WCS drop in 1-1/8" headset included

Your days of navigating airports and taxis with bulky and unruly bike boxes on your way to and from distant cycling destinations are a thing of the past. The legendary steel Road Logic Break-Away is back in the Ritchey stable! The bike that travels with you, the Road Logic Break-Away easily and quickly disassembles to fit into its own included sturdy travel case that is designed to help you avoid airline extra baggage fees. Once you arrive at your destination, the bike assembles with ease - allowing you to quickly get out and go. While the main feature of the Road Logic Break-Away is its liberating and innovative travel-friendly design, this unique version of the Road Logic frameset is 100% true to the spirit, spec, and ride quality of its standard frame sibling. The Road Logic Break-Away offers a riding experience that's steeped with more than fifty years of frame building heritage, innovation, and exploration. The beauty of its classic lines unites with modern building techniques and proven materials to deliver a contemporary bicycle that's wonderfully comfortable for long days in the saddle, nimble and stiff enough to win the sprint for that sign, and adequately adaptable to endure roads that might lack proper pavement – be it out your back door or in a different hemisphere. A modern classic by any measure, the Road Logic Break-Away is crafted with a heat-treated and triple-butted Ritchey Logic tubeset. This steel frameset features aggressively short-butted sections optimized for TIG welding that save weight and improve ride quality. Other features of the Road Logic Break-Away frameset include Ritchey’s proprietary forged-and-machined integrated head tube that uses standard drop-in bearings which saves 80 grams over a standard head tube design, spacing for up to 30c tires, and a Ritchey Carbon Fork for precise handling and plenty of tire clearance. The Road Logic Break-Away is sure to set you free to experience a lifetime of pedal turns - wherever you land and wherever they might lead you. - The bike that travels with you, the Road Logic Break-Away easily and quickly disassembles to fit into its own included sturdy travel case - TIG welded heat-treated, triple-butted Ritchey Logic steel tubing - Fits up to 30c tires - Ritchey WCS Carbon road fork and WCS headset included - Includes Break-Away travel case and padding along with a 4Nm Break-Away torque key

Standout features for this edition of the 2025 Outback include internal routing for a dropper post, a rack mount on the fork crown, and internal dynamo routing. Aurora and Winter Sage colorways offer riders more options to style their ride beyond the bike’s existing practical and adaptable features, but the “big” news is, this Outback also comes in size XXL. Bikepacking, road and off-road, you name it…the Ritchey Outback is designed to do it all. Tire Compatibility:700 x 48mm or 650 x 2.0in (depending on tire/rim manufacturer) Brake Compatibility: 140mm (160mm max - adaptors available separately)

The Road Logic offers a riding experience that's steeped with more than 50 years of life experiences, framebuilding heritage, innovation and exploration. The beauty of its classic lines unites with modern building techniques and proven materials to deliver a contemporary bicycle that's remarkably comfortable for long days in the saddle, nimble and stiff enough to win the sprint for that sign, and adequately adaptable to endure roads that might lack proper pavement. A true modern classic, Tom designed a heat-treated and triple-butted Ritchey Logic tubeset for the Road Logic, featuring aggressively short-butted sections optimized for TIG welding that save weight and improve ride quality. Ritchey’s proprietary forged-and-machined integrated headtube uses standard drop-in bearings and saves 80 grams over a standard head tube design. The Road Logic also features spacing for up to 30c tires and a Ritchey Carbon Fork that will ensure a lifetime of enjoyable pedal turns. Tire Compatibility: 700 x 30c tire clearance (depending on tire/rim manufacturer)

Voytek changes the fat bike game. It is fast, lightweight, agile, and can handle even the sharpest turns of your local singletrack with ease. Think of it as a mountain bike that can fit fat tires with adjustable geometry. We paired a narrow pedal stance—aka Q factor—with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer singletrack without sacrificing ride quality. When the weather turns and the snow turns to dirt, swap out the 26" fat wheelset for a 29" MTB wheelset to keep the party going all year. THE Q-FACTOR IS THE KEY The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control—the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The Voytek frame was designed around an 83mm bottom bracket, whereas most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don't need to compromise agile handling to ride up to 4.6" tires. ONE BIKE, THREE WHEELBASE LENGTHS Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes the bottom bracket height by up to 4mm and the head tube angle by +/.5º. In the forward position, you've got an aggressive, responsive Voytek for your next race. In the rear position, you've got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that's the best of both worlds. PLUS OR FAT? FAT OR PLUS? We're internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we're riding 4" tires. When spring comes and the trails turn to dirt, we swap out tires and ride 29" plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long. MODERN GEOMETRY Voytek's longer top tube, short chainstays – the shortest in the world for a fat bike – and slightly slacker head tube angle mean more speed and more fun. SUSPENSION CORRECT Voytek's suspension-corrected geometry is compatible with an Otso™ carbon rigid fork or up to 120 mm travel suspension fork. COMPETITOR TESTED, ISO APPROVED Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions. DROPPER COMPATIBLE The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

Voytek changes the fat bike game. It is fast, lightweight, agile, and can handle even the sharpest turns of your local singletrack with ease. Think of it as a mountain bike that can fit fat tires with adjustable geometry. We paired a narrow pedal stance—aka Q factor—with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer singletrack without sacrificing ride quality. When the weather turns and the snow turns to dirt, swap out the 26" fat wheelset for a 29" MTB wheelset to keep the party going all year. THE Q-FACTOR IS THE KEY The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control—the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The Voytek frame was designed around an 83mm bottom bracket, whereas most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don't need to compromise agile handling to ride up to 4.6" tires. ONE BIKE, THREE WHEELBASE LENGTHS Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes the bottom bracket height by up to 4mm and the head tube angle by +/.5º. In the forward position, you've got an aggressive, responsive Voytek for your next race. In the rear position, you've got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that's the best of both worlds. PLUS OR FAT? FAT OR PLUS? We're internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we're riding 4" tires. When spring comes and the trails turn to dirt, we swap out tires and ride 29" plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long. MODERN GEOMETRY Voytek's longer top tube, short chainstays – the shortest in the world for a fat bike – and slightly slacker head tube angle mean more speed and more fun. SUSPENSION CORRECT Voytek's suspension-corrected geometry is compatible with an Otso™ carbon rigid fork or up to 120 mm travel suspension fork. COMPETITOR TESTED, ISO APPROVED Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions. DROPPER COMPATIBLE The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

A decade-long hiatus taught us there’s more work to be done when it comes to resplendent riding on unpaved terrain. Thus, the new Straggler emerges with a dialed-in fit range and comfortable geometry, ready to roll with thru-axle wheels, modern flat-mount controls, and zero ego. It's a bike down for a lot of stuff, but it really shines when it’s kicking up dust to help you blow off some steam and get back to those dirt roots. No more missed opportunities or dead ends –– the Straggler’s taking every rowdy detour or weekend rendezvous it can get. It’s the ultimate day-tripper, cross-terrain explorer, and boundary-pusher, ready to plow through challenges, not obstacles. Straggler’s capabilities extend into some light cargo setups, so riders can do double-duty when hitting the trails and running around town. - 650b or 700c wheels (varies by frame size) for optimized rider fit - Racks and fender mounts, plus two standard and one three-pack bottle mounts on all frames - Updated thru-axle dropouts for improved stiffness and handling - Modern flat-mount brake mounts, internal dropper routing, and 44mm headtube - 50mm tire clearance w/o fenders on 700c for confident, comfortable riding on eroded terrain Sizes: 46cm – 52cm: 650b Sizes: 54cm – 64cm: 700c

The Aethos line promises three things—exceptional light weight, perfectly balanced ride characteristics, and undeniable style. Aethos: Billions of calculations in the pursuit of one thing—the perfect ride. And with this frame set, you have the perfect canvas to begin creating your dream ride. - The Aethos frame has been designed with the perfect combination of ultimate ride feel, light weight, and style—from accelerating up steep pitches and descending technical descents, to all-day saddle comfort on even the longest coffee rides, the Aethos hits the mark. But how, you ask? By reinventing the traditional road shape found on bikes of the past, we've subtly altered these shapes to deliver massive gains in stiffness and balance, all without affecting weight or durability. Pair that with an entirely new layup and process that we've perfected over multiple decades and you have the lightest frame out there (585 grams, S-Works, size 56cm). The Aethos is more than just a new bike, it's the first of a new breed. - A featherweight frame is useless without confidence-inspiring ride characteristics, which is why we've developed the Aethos to have the perfect balance of front and rear stiffness combined with exceptional ride quality. By studying the flexing and breathing of carbon fiber, we were able to discover groundbreaking findings about how forces flow through frames. Just a few pedal strokes and you'll realize this sublime ride sets a new standard. - Every detail, from the derailleur hangers to the fork expander plug have been designed with style, weight, and durability in mind—everything in pursuit for the perfect ride.

The Midnight Special is an endurance road bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. It excels on pot-holed, deteriorating pavement and the occasional long stretch of gravel. The Midnight Special’s 700c tires eat up road chatter and absorb all the bumps in the road for a much more comfortable ride. - 100% Surly Chromoly frame, main triangle is double-butted; 1-1/8" threadless Chromoly fork - Rack, fender, and three sets of water bottle mounts - Flat-Mount disc brakes - 44mm head tube - Tire Clearance: 27.5 x 2.35" (w/o fenders), 700c x 42mm (w/o fenders), 650b x 50 (w/ fenders), 700c x 38mm (w/ fenders)

The Waheela C is a carbon-framed drop bar bike with an adjustable geometry, unrivaled ride quality, and enormous tire clearance for 700c x 54mm, 650b x 54mm, or 29" x 2.1" tires. It has extra frame and fork mounting points for bottles and racks, easily accessible internal cable routing options, compatibility for 1x or 2x electronic or mechanical drivetrains, and the ability to run a dropper post. No matter the road ahead (or under the tire), the Waheela C is ready. GIANT TIRE CLEARANCE Gravel comes in all shapes and sizes, from the packed limestone of Southeast Minnesota to the chunky roads of the Flint Hills of Kansas. The Waheela C is equipped with tire clearance to handle the terrain of your next race. Where most gravel bikes can fit 650b x 50mm but only 40mm with bigger wheels, the Waheela C keeps on rolling, with space for 700c x 54mm tires. It'll run 700c x 35mm when the roads are tacky and tidy, 700c x 42mm when there's a bit more uncertainty, 700c x 54mm when the gravel road turns to ATV trails, and anything in between. The Waheela C can also fit 29" x 2.1", 27.5" x 2.1", or 650b x 54mm if 700c isn't really your thing. In short, the Waheela C is ready for the road ahead. ADJUSTABLE GEOMETRY Like all Otso bikes, the Waheela C sports our patented Tuning Chip rear dropout system, which allows you to change the length of your wheelbase and height of your bottom bracket. Put the Tuning Chip in the back position to get the stability and comfort of a longer wheelbase for a full day of riding gravel. Switch to the front position to get the agile handling and responsiveness required by your next CX race. And the middle position? That's the best of both worlds. The adjustable geometry of the Waheela C allows you to ride any road or any trail without needing to switch bikes. UNRIVALED RIDE QUALITY Our proprietary Waheela geometry was developed by our engineers for stability, confidence, and comfort on rough terrain. Where many gravel bikes put extra weight on the front wheel, the Waheela C centers the rider over both wheels. This makes for a more stable ride while allowing the compliant rear triangle to come into play and absorb the bumps of a gravel road. Meanwhile, the lightweight EPS molded carbon frame adds responsiveness and readiness for a sprint up that next hill. After a long day on the saddle, you'll find yourself adding a healthy amount of miles to tomorrow's ride. EXTRA MOUNTING POINTS Waheela C features fork bottle bosses, extra down tube mounting points (6 total), as well as top tube gas tank mounting points. Numerous braze-ons allow Waheela C to accommodate water bottles, fenders, racks, frame bags, and more. DETAILS THAT MATTER Internal brake and shifter routing with sleeves, carbon access door under bottom bracket for easier routing, front and rear thru-axle, and threaded bottom bracket for reliable, easy service. This also allows you to run that dropper post you've been dreaming about. COMPATIBLE WITH 1X OR 2X Waheela C is 1x and 2x compatible with mechanical and electronic drivetrains. It's also fully compatible with both Shimano Di2 and SRAM eTap AXS, in case you don't want to take advantage of internal routing options. QUALITY ASSURED Designed by the Otso engineering team, Waheela C frames are manufactured in one of the premier carbon fiber factories in Taiwan and come with a 5-year limited warranty. All bikes are inspected and assembled at our headquarters in Minneapolis, MN, USA.

The Otso Fenrir is a ride-anywhere bike for bike-packing races and afternoon adventures alike. It can be built with drop bars or with MTB bars and both selections are available as stock build options. A tire clearance of 29” x 2.6” or 27.5” x 2.8” keeps the Fenrir rolling on rough terrain, while the extra frame and fork braze-ons are ready to carry gear for days or weeks on the trail. Like all Otso bikes, the Fenrir has adjustable geometry via the patented Tuning Chip rear dropout system that makes the bike as adaptable as its rider. VERSATILITY While all Otso bikes are known for their versatility, the Fenrir might be the most versatile yet. It was designed to accommodate drop bars with a 50mm stem or MTB bars with an 80mm stem. It can be built with gears or single speed, with a suspension fork or rigid, with a mechanical or electronic drivetrain, or with a dropper or rigid seat post. The ability to fully customize the build of the bike makes the Fenrir as versatile as its rider. FENRIR WITH DROP BARS The Fenrir was designed with the option to be built with drop bars or MTB bars. When configured with drop bars, the Fenrir rides like an extra-capable gravel bike. The relatively longer top tube means a shorter stem is needed with drop bars to align with the rider's preferred reach. It can be built with standard road/CX/gravel bars for rides on local trails or with wider bars to fit a handlebar roll loaded with lots of gear. FENRIR WITH FLAT BARS When built with MTB bars, Fenrir rides like a 90s XC bike. It's fun and lively, yet efficient and Capable with a capital C. It can handle any sketchy descent or technical climb with ease. Because the top tube is relatively short for a mountain bike, a longer stem (80-90mm) is ideal for maintaining reach. Ride it on your local singletrack or load 'er up for that backcountry tour that you've been dreaming about--you know the one. However you choose to build it, Fenrir will ride any road/trail on the map and carry all the gear to get you there. OPTIMIZED FOR BIKEPACKING Every last feature of Fenrir is optimized for bike-packing. The stainless steel frame is strong, comfortable, and surprisingly lightweight. It can be built with flat bars or drop bars depending on your affinity for large handlebar rolls. Single-speed is an option for folks who like simplicity while touring. It has extra mounts on the frame and fork for hauling all the gear you'll need for days (or weeks) on the trail. The frame and fork can clear 29" x 2.6" or 27.5" x 2.8" tires for trails that are especially gnarly. No matter your destination and how long it takes to get there, Fenrir is ready. SINGLE SPEED All metal Otso bikes have the option to be built single-speed or with gears. Fenrir is included in that group because it has a small notch on the rear dropout near the Tuning Chip. If you build your Fenrir with gears but want to convert to single-speed later on, there is a single-speed Tuning Chip available ready to order alongside other accessories. There's no wrong way to build your Fenrir. SO MANY MOUNTS A bike-packing bike needs to be able to carry all the gear for days or weeks on the trail. Fenrir has mounts for bottles, fenders, and racks. The Enve fork also has three-pack mounts on either side for sharing the load. CAPABLE GEOMETRY Pick a trail on the map and ride it. Fenrir has the endurance of a gravel bike, with the stability of a mountain bike. Above all, it is Capable with a capital C so you can stay the course and reach your destination. DROPPER FRIENDLY A small port near the bottom of the seat tube allows for the cable routing of a dropper post. If you don't ride with a dropper, you probably won't even notice the port. AMPLE CLEARANCE Tires need to meet the demands of the trail for traction, stability, and comfort. Fenrir can ride up to 29" x 2.6" or 27.5" x 2.8" tires.  

The Crux is the lightest gravel bike in the world, with the exceptional capability of massive tire clearance and performance gravel geometry. It’s not just the ultimate expression of gravel performance, it’s your one-way ticket to gravel enlightenment. - Lightest: 725g S-Works 12r and 825g 10r frames. We took the revolutionary breakthroughs that made Aethos the lightest bike ever and applied them to the Crux. The result? A gravel bike that climbs like a dream, floats over nightmarish terrain, and weighs less than a full bottle in your cage. - Capable: 47c/650b x 2.1 tire clearance. More clearance means more capability. With Diverge-level tire clearance, Crux takes you anywhere you can imagine, at full gas. - Responsive: Nimble, supple, and reactive. Responsive at the pedals. Supple in the saddle. With performance gravel geometry and race-influenced fit inspired by Crux's iconic history in ‘cross.

The Otso Fenrir is a ride-anywhere bike for bike-packing races and afternoon adventures alike. It can be built with drop bars or with MTB bars and both selections are available as stock build options. A tire clearance of 29” x 2.6” or 27.5” x 2.8” keeps the Fenrir rolling on rough terrain, while the extra frame and fork braze-ons are ready to carry gear for days or weeks on the trail. Like all Otso bikes, the Fenrir has adjustable geometry via the patented Tuning Chip rear dropout system that makes the bike as adaptable as its rider. VERSATILITY While all Otso bikes are known for their versatility, the Fenrir might be the most versatile yet. It was designed to accommodate drop bars with a 50mm stem or MTB bars with an 80mm stem. It can be built with gears or single speed, with a suspension fork or rigid, with a mechanical or electronic drivetrain, or with a dropper or rigid seat post. The ability to fully customize the build of the bike makes the Fenrir as versatile as its rider. FENRIR WITH DROP BARS The Fenrir was designed with the option to be built with drop bars or MTB bars. When configured with drop bars, the Fenrir rides like an extra-capable gravel bike. The relatively longer top tube means a shorter stem is needed with drop bars to align with the rider's preferred reach. It can be built with standard road/CX/gravel bars for rides on local trails or with wider bars to fit a handlebar roll loaded with lots of gear. FENRIR WITH FLAT BARS When built with MTB bars, Fenrir rides like a 90s XC bike. It's fun and lively, yet efficient and Capable with a capital C. It can handle any sketchy descent or technical climb with ease. Because the top tube is relatively short for a mountain bike, a longer stem (80-90mm) is ideal for maintaining reach. Ride it on your local singletrack or load 'er up for that backcountry tour that you've been dreaming about--you know the one. However you choose to build it, Fenrir will ride any road/trail on the map and carry all the gear to get you there. DESIGNED FOR BIKE-PACKING Every last feature of Fenrir Ti is optimized for bike-packing. The titanium frame is strong, smooth, and lighter than steel. It can be built with flat bars or drop bars, depending on your affinity for large handlebar rolls. Single-speed is an option for folks who like simplicity while touring. It has extra mounts on the frame and fork for hauling all the gear you'll need for days (or weeks) on the trail. The frame and fork can clear 29" x 2.6" or 27.5" x 2.8" tires for trails that are especially gnarly. No matter your destination and how long it takes to get there, Fenrir Ti is ready. SINGLE SPEED All metal Otso bikes have the option to be built single-speed or with gears. Fenrir is included in that group because it has a small notch on the rear dropout near the Tuning Chip. If you build your Fenrir with gears but want to convert to single-speed later on, there is a single-speed Tuning Chip ready to order alongside other accessories. There's no wrong way to build your Fenrir. SO MANY MOUNTS A bike-packing bike needs to be able to carry all the gear for days or weeks on the trail. Fenrir has mounts for bottles, fenders, and racks. The Enve fork also has three-pack mounts on either side for sharing the load. CAPABLE GEOMETRY Pick a trail on the map and ride it. Fenrir has the endurance of a gravel bike, with the stability of a mountain bike. Above all, it is Capable with a capital C so you can stay the course and reach your destination. DROPPER FRIENDLY A small port near the bottom of the seat tube allows for the cable routing of a dropper post. If you don't ride with a dropper, you probably won't even notice the port. AMPLE CLEARANCE Tires need to meet the demands of the trail for traction, stability, and comfort. Fenrir can ride up to 29" x 2.6" or 27.5" x 2.8" tires.  

Our original all-road bike. The Warakin Stainless was one of the first bikes we built when we created Otso in 2016. It's been such a hit over the years that we haven't changed the geometry one bit. Stainless steel has a ride quality that is familiar, yet surprising—smooth like steel, lively like titanium. The Warakin Stainless is ready for your next century, three-day bike-packing trip, or afternoon group ride. STAINLESS STEEL The supple and smooth ride quality of steel meets the corrosion resistance and lively feel of titanium. Stainless steel is lighter than you think, loads of fun, and ready for your next full day on the saddle. It's a frame material that is as unique and seldom used as it is versatile and excellent for multiple types of riding. TIRE CLEARANCE 700c? Check! 650b? Double check! 29er? Triple check! Warakin Stainless has massive tire clearance because no two roads are the same. The Warakin Stainless has clearance for 700c x 51mm, 650b x 51mm, or 29" x 2.1" tires. Race gravel with 700c x 38mm semi-slicks, then swaps in 29" x 2.1" for that bike-packing trip with gnarly trails without needing to ride a different bike. TUNING CHIP™ The Tuning Chip rear dropout system allows for adjustable bike geometry by changing the wheelbase by up to 20mm, bottom bracket height by up to 4mm, and head tube angle by 0.2º. This means you can easily switch between a bike with the responsive, agile handling of a shorter wheelbase and a bike with the confidence and stability of a longer wheelbase just by flipping the Tuning Chip. Use the back position for stability and confidence with its longer wheelbase, lower bottom bracket, and slack head tube angle. The front position is ideal for winding singletrack or the CX course with its shorter wheelbase, higher bottom bracket, and steeper head tube angle. The center position is the best of both worlds. TOP PERFORMER Unparalleled ride quality results from the combination of stainless steel and carefully thought-out frame geometry. The Warakin Stainless was designed by our engineers in Minnesota and manufactured by top steel frame fabricators in Taiwan. PROGRESSIVE GEOMETRY Warakin’s progressive geometry takes a page from the cross-country MTB playbook. Increased top tube length and a shorter stem maintain stack and reach while providing a lively ‘can-do’ attitude on rougher terrain. DROPPER FRIENDLY A small port near the bottom of the seat tube allows for the cable routing of a dropper post. If you don't ride with a dropper, you probably won't even notice the port. FOR THE LONG HAUL Numerous frame braze-ons allow Warakin to accommodate cable routing clamps, three water bottles, fenders, racks, frame bags, and more. Three braze-ons on either side of the fork allow for additional storage.

The Jawbone A-Type frame is the perfect platform to build drop bar mountain touring and bike packing rig. While it is still game for riding gravel and singletrack, it is in its element when packed up for your next adventure. - Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end - Flat mount disc brake tabs on rear - Investment cast vertical dropout with replaceable stainless steel hanger. 12 x 142mm thru-axle - Front derailleur compatible (bottom pull) - Headset for optional 1-1/8" matching fork: SHIS: ZS44/28.6 | ZS44/30. If running a tapered steerer fork, get an EC44 lower cup - Rear rack and fender eyelets - Two sets of bottle cage bosses; one set of cargo cage bosses on downtube - 44mm headtube: Fits 1-1/8" steerer tubes and tapered steerer tubes with a headset swap - 27.2mm post size/28.6mm frt. der. size/29.8mm seat collar, 73mm bottom bracket (English threads) - Tire Width Range: 27.5 x 47mm to 2.5" / 700c x 38mm to 29 x 2.25" - For matching fork please considerYC4022

Putting more air between you and the trial, the Hook EXT is the choice when you're unsure of the terrain, or know you want to cut loose. The Hook's hoodlum tendencies given free rein. Using a Columbus steel frame, dedicated carbon fork, and lively 27.5-inch wheels, the EXT can batter through territory out-of-bounds to other drop handlebar bikes. As capable on backcountry campouts as it is on post-work blasts, the Hook EXT remains the choice when you're unsure of the terrain, but know you want to have fun riding it. HIGHLIGHTS - Columbus Cromor double-butted frame - Full carbon tapered fork with internal light cable routing, through axles and triple cage mounts. - Integrated light cable routing and rear light mount. - Toptube bag direct mounts, triple cage mount on downtube and seattube for optimized bottle position, bottle cage mounts underneath the downtube, and rear rack mounts. - Front derailleur compatible. - 12 mm through axles front and rear.

The original inspiration for the Wolverine was “monster cross”, but it is seriously so much more. Its geometry is stable enough for off road touring, but sporty enough for all-around adventure. 2023 brings us the 4.1 A-Type update which adopts the flat mount disc standard on the frame and optional CrMo fork. The A-Type has more modern standards than the B-Type, such as 142mm rear thru-axle and a 44mm headtube that will fit 1-1/8 straight steerer or tapered steerer forks with the proper headset type. There is NO frame break for Belt-Drive on the A-Type Wolverine. (See chart in photo gallery for other differences between A and B) - IRD Broski sliding dropouts let you run gears or a single speed set up with better durability and less wheel slippage - Tange Prestige heat-treated CrMo tubes for the front triangle, butted CrMo rear end - Internal anti-rust coating protects against rust - Braze-ons for rear rack and fenders (disc brake-compatible racks only) - Rear hub spacing: 12x142mm TA with flat mount disc brake - Clearance for 700x45c tires with fenders - Three sets of water bottle bosses - 44mm ID headtube: (Use ZS44/28.6-ZS44/30 headset for 1-1/8" steerers) (Use ZS44/28.6 -EC44/40 headsets for 1-1/8"-1-1/2" tapered steerers) - Matching thru-axle fork sold separately—SF3426

Midnight Special is a road plus bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. Midnight Special shines on pot-holed, deteriorating pavement and the occasional long stretch of gravel. Its 650B road plus tires eat up road chatter and absorb all the bumps in the road like the champion it was designed to be. When it comes to road bikes, we just want to toss a few bananas into our pockets and see where the road takes us. We seek out varied surfaces on our rides and frequently go from pavement to gravel to worse pavement. Midnight Special allows us to accomplish all of that quite comfortably. - Higher volume tires allow better fine tuning of tire pressure on varying surfaces and create a wider contact patch for increased traction - Modern road standards like flat-mount disc brakes, 12mm front and rear thru-axles, and a 44mm head tube - Clearance for 650B x 60mm or 700c x 42mm tires without fenders (650B x 50mm or 700c x 38mm with fenders)

A class-leading touring bike, the newly redesigned Disc Trucker provides versatility and dependability on the daily commute or trans-continental excursion. Fork blade three-pack mounts enable you to attach and haul even more stuff, and the frame features a low bottom bracket and long chainstays for comfort and stability while loaded down. With increased stack height and improved standover clearance, plus ample space for larger tires and fenders, it’s designed to go the distance. Introduced in 2012, the Disc Trucker is widely considered one of the best-in-class touring bicycles available today. Truly at home on the road, it features updated geo and modern component compatibility, along with versatile mounting options that make it ideal for daily commutes and months-long disappearing acts alike. Built from Surly’s proprietary, touring-compliant 'Natch tubesets, updates to the Disc Trucker include a shortened seat tube and slightly sloped top tube for better stand-over clearance, plus an increased stack height for a more relaxed riding position. Shortened chainstays offer improved stiffness and maneuverability around corners, while 12mm thru-axles provide a stiffer feel and greater stability when fully loaded. To ensure the Disc Trucker continues to exceed expectations in terms of compatibility with modern product standards, its dropouts have been redesigned to accommodate flat-mount disc brakes and captured thru-axles. An updated fork incorporates dynamo routing and three-pack mounts for even more mounting options. - 100% Chromoly steel frame and fork; double-butted main triangle and E.D. coating for increased frame life - Braze-ons for fenders, racks, and almost anything else you might want to stick on your bike, plus spare spoke holders for when the road gets rough - Fork blade three-pack mounts for even more mounting options, plus routing for Dynamo hubs - Redesigned front and rear dropouts to accommodate captured 12mm thru-axles and flat-mount disc brakes - Clearance for 26 x 2.1" tires with or without fenders

A class-leading touring bike, the newly redesigned Disc Trucker provides versatility and dependability on the daily commute or trans-continental excursion. Fork blade three-pack mounts enable you to attach and haul even more stuff, and the frame features a low bottom bracket and long chainstays for comfort and stability while loaded down. With increased stack height and improved standover clearance, plus ample space for larger tires and fenders, it’s designed to go the distance. Introduced in 2012, the Disc Trucker is widely considered one of the best-in-class touring bicycles available today. Truly at home on the road, it features updated geo and modern component compatibility, along with versatile mounting options that make it ideal for daily commutes and months-long disappearing acts alike. Built from Surly’s proprietary, touring-compliant 'Natch tubesets, updates to the Disc Trucker include a shortened seat tube and slightly sloped top tube for better stand-over clearance, plus an increased stack height for a more relaxed riding position. Shortened chainstays offer improved stiffness and maneuverability around corners, while 12mm thru-axles provide a stiffer feel and greater stability when fully loaded. To ensure the Disc Trucker continues to exceed expectations in terms of compatibility with modern product standards, its dropouts have been redesigned to accommodate flat-mount disc brakes and captured thru-axles. An updated fork incorporates dynamo routing and three-pack mounts for even more mounting options. Additionally, the 700c platform now offers clearance for 47mm tires for greater flexibility in tire options. - 100% Chromoly steel frame and fork; double-butted main triangle and E.D. coating for increased frame life - Braze-ons for fenders, racks, and almost anything else you might want to stick on your bike, plus spare spoke holders for when the road gets rough - Fork blade three-pack mounts for even more mounting options, plus routing for Dynamo hubs - Redesigned front and rear dropouts to accommodate captured 12mm thru-axles and flat-mount disc brakes - Clearance for 700c x 47 tires with or without fenders

The Midnight Special is an endurance road bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. It excels on pot-holed, deteriorating pavement and the occasional long stretch of gravel. The Midnight Special’s 700c tires eat up road chatter and absorb all the bumps in the road for a much more comfortable ride. - 100% Surly Chromoly frame, main triangle is double-butted; 1-1/8" threadless Chromoly fork - Rack, fender, and three sets of water bottle mounts - Flat-mount disc brakes - 44mm head tube - Tire Clearance: 27.5 x 2.35" (w/o fenders), 700c x 42mm (w/o fenders), 650b x 50 (w/ fenders), 700c x 38mm (w/ fenders)

The Grappler is Surly's dedicated drop-bar trail bike. With mountain geo designed around a comfortable, confident drop-bar hand position, it's lively and responsive on single-track, double-track, and other degraded surfaces. Ready to haul essential gear for all-day dirt rides and quick bikepacking excursions, captured thru-axles front and rear provide ideal stiffness and handling. Built around 27.5" wheels and compatible with internally geared hubs and single-speed setups, Surly's tried-and-true Gnot-Boost spacing allows riders to run 142mm or 148mm rear hubs. - 100% Surly Chromoly steel frame and fork, featuring Surly's proprietary 'Natch tubing, double-butted main triangle, 1-1/8" headtube, non-suspension corrected. - Horizontal-slotted dropout, Surly Gnot-Boost spacing. - Seat stay-mounted bottle bosses on all sizes except XS, plus three-pack mounts at the top and bottom of the down tube and stealth dropper post routing. - E.D. coated frame for increased life expectancy. - 27.5 x 2.8" tire clearance (with or without fenders).

Designed to introduce unfamiliar riders to Surly’s pavement and gravel line, Preamble highlights Surly’s most essential features: Durable custom steel tubing, a renowned ride feel, and just the right mounts for running racks, fenders, and bottle cages. Available in flat-bar and drop-bar configurations, it’s disc-brake specific and shares a single-position vertical dropout with Surly Bridge Club. For new weekend riders and veteran commuters, Preamble makes it easier than ever to get out of the car and on top of tough and comfortable Chromoly steel. - 100% Surly Chromoly steel frame and fork; double-butted main triangle - Five frame sizes to fit nearly every size rider (XS, S, M, L, XL), with a slightly sloped top tube on XS and Small frames for improved standover and comfort - Friendly with 1x and 2x drivetrains - Mounts for racks, fenders, and two bottle cages (located on the seat tube and down tube) - Clearance for 650b x 41mm tires on XS–S frame sizes (650b x 38mm with fenders); 700c x 41mm tires on M–XL frame sizes (700c x 38mm with fenders)

As a highly versatile touring bike, the Bridge Club hits the sweet spot that separates on- and off-road excursions. The simplistic design makes it fully adept to handle a full rack and pannier setup, frame bags, or any combination of the two. It doesn’t feel sluggish on paved shortcuts, but can also hold its own on dirt detours. If you’re feeling a little zesty on your next road tour, you won’t be ill-prepared for reroutes through the woods. The Bridge Club is designed to handle it all. - 100% Surly Chromoly frame, main triangle is double-butted; 1-1/8" threadless Chromoly fork - Rack, fender, and four sets of three-pack mounts - Disc brake-specific, single-position vertical rear dropout makes it less intimidating than other bikes in the category - Clearance for 700 x 47mm (with or without fenders) or 27.5 x 2.8" tires (27.5 x 2.6" with fenders)

The Grappler is Surly’s dedicated drop-bar trail bike. With mountain geo designed around a comfortable, confident drop-bar hand position, it’s lively and responsive on single track, double track, and other degraded surfaces. Ready to haul essential gear for all-day dirt rides and quick bikepacking excursions, thru-axles front and rear provide ideal stiffness and handling. Built around 27.5” wheels and compatible with internally geared hub and single-speed setups, Surly’s tried-and-true Gnot-Boost spacing allows riders to run 142mm or 148mm rear hubs. - 100% Surly Chromoly steel frame and fork, featuring Surly’s proprietary ’Natch tubing, double-butted main triangle, 1-1/8” headtube, non-suspension corrected - Horizontal-slotted dropout, Surly Gnot-Boost spacing - Seatstay-mounted bottle bosses, plus three-pack mounts at the top and bottom of the down tube and stealth dropper post routing - E.D. coated frame for increased life expectancy - 27.5 x 2.8” tire clearance (with or without fenders)

Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. After eight generations and over two decades of development, it’s more than the fastest Tarmac ever - it’s the world’s fastest race bike. Your legs up for it? Aerodynamics or lightweight alone don’t win races - speed is what matters. Delivering that speed requires creating an uncompromising combination of aerodynamics, lightweight, stiffness, and compliance. Through race simulations using real world data our Ride Science team knows the Tarmac SL8 is the fastest race bike ever made on the routes that matter - 16.6 seconds faster over 40km, 128 seconds faster over Milan San Remo, 20 seconds faster over the legendary Tourmalet climb. - AERO IN EVERYTHING: We’re putting aero where it matters - the leading edge - not just where it looks good. In the process we’ve created our most aerodynamic road bike ever. Yes, it’s more aero than the Venge. Clean air is optimized for maximum advantage with the Tarmac’s new nose cone - the Speed Sniffer. By moving the steer tube back - the tube that determines head tube width - the leading edge of the head tube can be much sharper, delivering a much lower drag shape. Utilizing new UCI rules, the Tarmac SL8 has the narrowest, most aero seat post we’ve ever made ensuring fast moving, dirty air around the legs can flow back more cleanly. Doesn’t victory smell sweet? - MINIMUM WEIGHT, MAXIMUM AERO: Tarmac SL8 took learnings from Aethos to be easily built at the UCI minimum with a full aero set up. The team delivered a mind bending, scale tickling 685 gram frame - 15% lighter than the Tarmac SL7 and lighter than anything on else on the World Tour*. With the ability to make lightweight a top priority in the down tube, seat tube, and rear of the bike lessons from Aethos were applied. The frame’s shape carries load so efficiently that extra carbon stiffness layers become redundant. *Unless of course you count the time Kasper Asgreen raced our 585 gram Aethos frame during a Tour stage. - GOES LIKE HELL, RIDES LIKE HEAVEN: With massive gains in stiffness-to-weight - an improvement of 33% over the SL7 - the Tarmac SL8 takes legendary handling, aggressive responsiveness and World Championship proven geometry to the next level. The bike is stiffer at the pedals, more precise at the bars, and combines it with a compliant ride in the saddle that sets a new benchmark for race bike comfort. Thanks to our Rider-First Engineering, every rider, regardless of size, gets the same unprecedented ride quality and handling. In the saddle the Tarmac SL8 delivers 6% more compliance, floating over rough road with a supple feel unique in the high strung world of race bikes. Tarmac’s proven geometry and 32mm tire clearance are identical to the SL7, ensuring easy adaptation and the versatility to run higher volume tires when needed. - BEYOND GENDER: There can be more difference between two male cyclists than between a male and female. Gender alone doesn’t provide nearly enough data to specialize and that means creating male or female bikes is arbitrary and outdated. Every rider can get the next level advantage of Tarmac SL8. It’s time to go Beyond Gender. - 68mm threaded bottom bracket, flat mount disc brakes, and no-hassle seamless integration — the S-Works Tarmac SL8 Frameset is the ultimate starting point for your dream build.

The Crux DSW is more than the lightest alloy gravel bike ever made. We took everything we learned creating the carbon Crux and used our patented D’Aluisio Smartweld to make it a reality in alloy. We’ve created the most capable, nimble, balanced, and responsive alloy gravel bike ever made for fast, fun, high-performance riding. And yeah, it’s the lightest too. Some may call it a carbon copy, but we call it the Crux DSW. Lightest Weight At just 1399 grams*, the Crux DSW is the lightest alloy gravel frame in the world. Combine that with our Fact12r Crux carbon fork and a build curated for performance, and a complete Crux DSW tips the scales at 9.37kg—no alloy gravel bike can compete. *56cm in the lightest colorway. Production frames will vary. Most Capable More clearance means more capability—that’s why the Crux DSW has the same tire clearance as its carbon sibling—47mm and up to 2.1” on a 650b wheel. Combine this with the tough and light alloy frame, and Crux DSW can take you anywhere you imagine at full gas. Ultra-Responsive Responsive at the pedals. Supple in the saddle. We’ve used D’Aluisio Smartweld to fine-tune the properties of alloy to deliver a ride previously impossible without carbon and combine it with the same performance gravel geometry and race-influenced fit as the carbon Crux. A longer reach delivers better weight distribution for quick, confident handling, while a lower stack creates a performance first position. At 72mm of bottom-bracket drop, we hit the sweet spot between nimble and stable. D’Aluisio Smartweld D’Aluisio Smartweld - or DSW - is a patented engineering process that uses hydroforming to precisely match tube-to-tube joints for better, stronger welds and, ultimately, a lighter frame that can be twice as durable as a traditional alloy frame. Our Smartweld technique helps us create a unique single-piece downtube and bottom bracket for the Crux, shaving weight and amplifying responsiveness. - Lightest: 1399g Crux DSW Frame (raw, unpainted). We took everything we learned creating the carbon Crux and used our patented D’Aluisio Smartweld to make it a reality in alloy. *56cm in the lightest colorway. Production frames will vary. - Capable: 47c/650b x 2.1” tire clearance. More clearance means more capability. With Diverge-level tire clearance, Crux takes you anywhere you can imagine. - Responsive: Nimble, supple, and reactive. Responsive at the pedals. Supple in the saddle. With performance gravel geometry and race-influenced fit inspired by Crux’s iconic history in ‘cross.

We created the all-new Allez Sprint by cannibalizing the Tarmac SL7. We tore the Tarmac apart, and rebuilt it from alloy with our Smartweld technology. We leveraged every innovation and insight learned during its development to create the all-new Allez Sprint. Whether chasing a National title or attacking your buddies 15 minutes into an “easy” Sunday spin, we won’t be offended if you mistake the Allez for a Tarmac SL7. Some may call it a carbon copy, we call it the World’s First Alloy Super Bike Ready to make your dream alloy super bike a reality? Start with the all-new Allez Sprint Frameset. Equipped with a Tarmac SL7 FACT carbon fork and seatpost, it’s compatible with both aero and traditional stems and bars, electronic and mechanical drivetrains, and features a no-fuss threaded bottom bracket. The rest is up to you. - The Allez Sprint is the fastest alloy road bike in history, thanks to the time its sibling, the Tarmac SL7, spent in the wind. It’s details like the most complex alloy head tube we’ve ever made and integrated cables that make it 41 seconds faster over 40km than the previous Allez Sprint. That’s a hell of a facelift. With 41 seconds, you’d have a podium picture in your Insta feed, just saying. - Whether you’re launching a sprint out of the final corner or attacking from the gun like a young Italian at the Giro, the Allez Sprint, with its one-piece bottom bracket and downtube, delivers the ruthless efficiency of alloy with unprecedented stability. By balancing power at the pedals with input at the bars, the Allez Sprint keeps you fast and confident on the limit. Dive for the winning gap, bang elbows in the final meters, dissect the most technical descents, all without feeling like you’ve gone ten rounds with the heavyweight champ. Dropped seat stays, and the Tarmac SL7’s carbon seat post and fork make the Allez Sprint supple in the saddle and precise at the bars—all with Tarmac SL7's World Championship-proven geometry. It’s as comfy as it is beautiful. Well, almost. - One innovation over any other helps us deliver the new Allez Sprint’s aerodynamics, power transfer, and handling—Smartweld. Making the fastest bikes in the world out of carbon wasn’t hard enough. We hydroformed the bottom bracket and down tube from a single piece of alloy, built our most complex alloy head tube ever, and then put it all together with Smartweld. It’s what makes the Allez Sprint the first alloy super bike.