el Oso Uno

Assembly Options Professionally assembled by your local dealer, or DIY the assembly - its up to you!
Financing Available Buy Now, Pay Later with Klarna. We’ve partnered with Klarna to offer flexible payment options to pay over time.
30 Day Returns Our love your ride guarantee – if you’re not 100% happy with your bike, we’re not happy either. Click here for more details
Frame Warranty Covered for at least 5 years! Check out the details to see if your bike qualifies for longer.
Mechanical Disc
Tire Size
Frame material

If you had one bike that could survive a theoretical zombie apocalypse, it’d be the Diamondback el Oso Uno. Oddly enough, you’d be riding through said apocalypse with a great big smile on your face, because in addition to being durable and capable of carrying you and your gear over any kind of terrain (check out the rack mounts), this fat bike is just plain fun to ride. The extra wide tires on el Oso Uno provide outstanding traction, and you can mount tires up to 26″×5” wide for extra float over soft surfaces. Aboard el Oso Uno, you can survive anything the trail throws your way, including the occasional zombie horde.

  • Bike Frame El Oso Butted Heat Treated Steel, 1-1/8" Headtube, 170mm Rear OLD, w/Laser Cut Disc Drop Outs, Fits up to 26x5" tire
  • Bike Fork DB El Oso Custom Rigid Steel Fork, 1-1/8" Steerer Tube, 135mm QR Disc Dropouts
  • Bike Headset FSA Orbit, No.8B
  • Bike Cranks SR Suntour XCM, 36/22T
  • Bike Bottom Bracket Sealed Cartridge
  • Bike Front Derailleur Shimano Alivio M4020-D, Side Swing, Front Pull, Direct Mount
  • Bike Rear Derailleur Shimano Acera M3000, Shadow, 9 Speed, SGS
  • Bike Shifter Shimano Acera M3000, 2x9 Speed Rapidfire
  • Bike Cogset Shimano HG200, 9 Speed, 11-36T
  • Bike Chain KMC X9 EPT Anti-Rust
  • Bike Front Hub 32h Alloy, 3/8" Nutted
  • Bike Rear Hub 32h Alloy, 3/8" Nutted, Cassette
  • Bike Spokes 14g Stainless Steel
  • Bike Rims Diamondback 73mm Wide w/28mm Cutouts, 32h Alloy Singlewall
  • Bike Tires Chaoyang Cruiser 26x4.0"
  • Bike Brake Levers Tektro 2 Finger Alloy
  • Bike Pedals DB4L Alloy Platform
  • Bike Handlebar Diamondback, 740mm Wide, 15mm Rise, 31.8 Bar Bore
  • Bike Grips DB High Density Foam Grip
  • Bike Stem DB 3D Forged, 7° Rise, 31.8 Bar Bore
  • Bike Seat DB Race M-series Saddle
  • Bike Seatpost DB Alloy Micro Adjust, 30.9mm
  • Bike Extras Tool Kit
  • Bike Brakes Tektro Aires Mechanical Disc, w/180mm Front / 160mm Rear Rotors
  • Product ID 3918
Frame Size SM/16 5'4" - 5'7" MD/18 5'7" - 5'10" LG/20 5'10" - 6’1”
Rider Height - - -
Bike Stand Over Height 787.0 mm 804.0 mm 820.0 mm
Bike Seat Tube Length 400.0 mm 450.0 mm 500.0 mm
Bike Top Tube Length 580.0 mm 609.0 mm 630.0 mm
Bike Head Tube Length 110.0 mm 120.0 mm 120.0 mm
Bike Head Angle 68.5 mm 68.5 mm 68.5 mm
Bike Seat Angle 74.0 mm 74.0 mm 74.0 mm
Bike Wheel Base 1130.0 mm 1160.0 mm 1181.0 mm
Bike Chain Stay Length 460.0 mm 460.0 mm 460.0 mm
Bike Bb Drop 60.0 mm 60.0 mm 60.0 mm
Bike Stem Length 70.0 mm 70.0 mm 80.0 mm
Bike Handlebar Width 740.0 mm 740.0 mm 740.0 mm
Bike Crank Length 170.0 mm 175.0 mm 175.0 mm
Bike Seat Post Length 350.0 mm 350.0 mm 350.0 mm
Bike Stack 596.0 mm 606.0 mm 605.0 mm
Bike Reach 409.0 mm 435.0 mm 456.0 mm
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