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    Warakin Stainless


    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 bikepacking trip, or afternoon group ride.


    With purchase of select Bikes*

    Use coupon code FREEWHEELS

    *Promotion only valid on Waheela C, Warakin, and Fenrir complete bikes for either one set of SUNringle G30 Expert gravel wheels or SUNringle Duroc 30 Comp 29" boost wheels. Does not include any extra tires, cassettes, or rotors. Valid now thru 6/1/2023 or while supplies last.


    Otso bikes are available to purchase here on our website or with our network of Otso dealers. Our Custom Bike Configurator allows you to select most component options on your bike, including drivetrain, wheelset, tires, handlebars, seatpost, anodized accent color option, and more. Warakin Stainless is also available as a frameset if you already have parts ready to go at home. We’re happy to talk through options to help you build the Warakin Stainless that is perfect for you and your riding style.

    Note: Images may not show actual build kit content. Pricing and specifications subject to change without notice. Comparable components may be substituted when necessary to fulfill bike shipments.

    Otso has a small (but growing!) network of bike shops that sell our bikes. Click the button to the right to see a map of all Otso dealers. If there is not one in your area, you can still build and order any of our bikes right here on our website. Give us a shout at with any questions.  


    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.

    "We predict lots of people will fall in love with this stainless-steel gravel bike, thanks to a smart design that allows users to customize the ride."

    Outside Magazine

    "The Warakin is stable and smooth for longer rides with a light load, and actually rides even better loaded up. The Warakin is an unusual, versatile bike and is ready for any adventure on gravel you can throw at it."

    Riding Gravel


    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 50mm, 650b x 50mm, or 29" x 2.0" tires. Race gravel with 700c x 38mm semi-slicks, then swap in 29" x 2.0" for that bikepacking trip with gnarly trails without needing to ride a different bike.

    "[T]he Warakin checks the boxes of modern, do-it-all bike criteria, and steps outside the box with its options, adjustability and shiny finish."

    Cyclocross Magazine

    "It is immediately apparent when riding the Warakin that ride quality was paramount in the build. Whether a true gravel grinder, or a mixed use bike with touring capability, the Warakin threads the “do anything” needle."

    Gear Institute


    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.



    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.


    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.


    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.


    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.


    Compatible fenders

    SKS - Speedrocker (for 23 - 42mm tires)

    SKS - S-Board and S-Blade

    SKS - Commuter II

    PDW - Sodapop

    Ass Savers - Mudder Mini front and Fendor Bendor Regular


    compatible racks

    Axiom - Streamliner 29er DLX Rear Rack (requires Tuning Chip with threaded rack mounts)

    Topeak - Uni Super Tourist DX Rear Rack (requires Tuning Chip with threaded rack mounts)

    Blackburn - Outpost Rear World Touring Rack (requires Tuning Chip with threaded rack mounts)

    Old Man Mountain - Divide Front Rack axle mounted with Fit Kit SET705.R

    Old Man Mountain - Divide Rear Rack axle mounted with Fit Kit SET814

    Old Man Mountain - Elkhorn Front Rack axle mounted with Fit Kit SET705.R

    Old Man Mountain - Elkhorn Rear Rack axle mounted with Fit Kit SET814


    Frame Bag Dimensions

    (click on links to view PDF drawings)