Otso Arctodus SLX


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The Otso Arctodus SLX is built for extreme conditions with a durable Chromoly steel frame and adjustable geometry. It can accommodate large tires up to 26″ x 5.05″, ensuring excellent traction on loose and snowy surfaces.


The Otso Arctodus SLX is a high-performance fat bike designed for serious riders tackling extreme winter conditions and rugged trails. Built with a Chromoly steel frame and a Lithic carbon fat fork, this bike offers durability and versatility, ensuring a stable and controlled ride on loose and snowy terrains.


Wide Tire Clearance: Fits massive tires up to 26″ x 5.05″ and 27.5″ x 4.5″, offering exceptional traction on loose and snowy surfaces.

Adjustable Geometry: The Tuning Chip™ dropout system allows you to adjust the wheelbase, bottom bracket height, and head tube angle, adapting the bike’s performance to various conditions.

Durable Build: The Chromoly steel frame combined with the Lithic carbon fat fork ensures a robust and resilient structure capable of handling the toughest trails.

High-Performance Drivetrain: Equipped with a Shimano SLX M7100 12-speed drivetrain, providing smooth and reliable shifting for optimal performance.

Powerful Braking: Features Magura MT4 hydraulic disc brakes, delivering strong and dependable stopping power in all conditions.


  • Frame: Chromoly steel with Tuning Chip™ dropout system
  • Fork: Lithic carbon fat fork, suspension corrected, tapered steerer tube, 485mm axle-to-crown, 51mm offset
  • Wheels: Lithic Cryolite 100, 26″ wheels with 97mm inner width
  • Tires: Schwalbe Al Mighty 26″x4.8″
  • Drivetrain:
    • Rear Derailleur: Shimano SLX M7100, 12-speed
    • Shifters: Shimano SLX M7100 Trigger, 12-speed
    • Crank: Race Face Aeffect with Wolf Tooth CAMO System P2 (+4mm offset) spider, 30T chainring
    • Bottom Bracket: Race Face, BSA 100mm
  • Brakes: Magura MT4 hydraulic disc brakes
  • Cockpit:
    • Handlebar: Race Face Ride, 740mm riser
    • Stem: Aluminum
    • Seatpost: Aluminum, 31.6mm
    • Saddle: WTB Volt Medium, 142mm width
    • Grips: Wolf Tooth grips
  • Headset: ZS44 upper, EC44 lower


Warranty Coverage:

  • All Otso frames are warranted against defects in materials and workmanship for 5 years from the date of retail purchase.
  • This warranty applies to the original owner only and is not transferable.
  • Please keep your sales receipt or order number for any warranty claims to ensure a quick resolution.

What’s Not Covered:

  • Damage from improper assembly, maintenance, or user/assembler inexperience.
  • Modifications, neglect, misuse, competition, commercial use, or accidents.
  • Installation of incompatible components, parts, or accessories.
  • Normal wear and tear, or damage to paint, surface finish, or aesthetics.
  • Compatibility of original components with a replacement frame is not guaranteed.
  • Costs for labor, parts removal, refitting, or re-adjustment, including wheel rebuilds.

Claim Process:

  • Warranty claims are limited to the repair or replacement of the defective frame, at Otso’s discretion.
  • This warranty does not cover incidental or consequential damages.

Legal Information:

  • This warranty gives you specific legal rights, which may vary based on location. It does not affect your statutory rights.