El Oso de Acero

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El Oso de Acero

Is it possible to call a fat bike sleek? El Oso de Acero's classic steel lines look almost elegant when compared to other fat bikes. Steel has long been the favorite of bicycle frame makers due to its strength, ride quality, and aesthetic. These tubes are butted and heat-treated, giving the bike a level of compliance on top of what the roomy tires provide. Designed to get you and your gear out in the backwoods as easily as possible, El Oso de Acero is equipped with a full complement of solid Shimano parts. With a 3×9 drivetrain, rack mounts, and a spirit of adventure, it's a dependable workhorse for those seeking something new out of a bike. With more traction than any bike's allowed to have, it's a rockcrawler, a dune buggy, and a snowmobile. In white or camouflage, El Oso de Acero is ready to help you get lost!

Frame El Oso Butted Heat Treated Steel, 1-1/8" Headtube, 150mm Rear OLD, w/ Laser Cut Disc Drop Outs
Fork DB El Oso Custom Rigid Steel Fork, 1-1/8" Steerer Tube, 135mm QR Disc Dropouts
Headset Threadless 1-1/8" Aheadset
Cranks Shimano Acera M361, 42/32/22T
Bottom Bracket Sealed Cartridge
Front Derailleur Shimano Alivio M410, Top Swing, Dual Pull, E-Type
Rear Derailleur Shimano Acera M360, 8 Speed
Shifter Shimano Acera M360, 3x8 Speed Rapidfire
Cogset Shimano HG41, 8 Speed Cassette, 11-34T
Chain KMC X8 EPT Anti-Rust
Front Hub 32h Alloy w/ CNC Disc Mount, 3/8" Nutted, 135mm OLD
Rear Hub 32h Alloy w/ CNC Disc Mount, 3/8" Nutted, 170mm OLD, Cassette
Spokes 14g Stainless Steel
Rims 32h Diamondback, 75Wide w/28mm Cutouts, Alloy Singlewall
Tires Chaoyang Cruiser 26"x4.0"
Brake Levers Tektro 2 finger Alloy Linear w/ reach Adjust
Pedals DB4L Alloy Platform
Handlebar Diamondback "Pro Bar", 740mm Wide, 15mm Rise, 31.8 Bar Bore
Grips DB High Density Foam Grip
Stem DB 3D Forged, 7° Rise, 31.8 Bar Bore
Seat DB Race M-series Saddle
Seatpost DB Alloy Micro Adjust 30.9mm
Extras Owner's Manual
Bike Weight 37 lb 15 oz (size medium no pedals)
Bike Size S/16" / Rider Height: 5'4" - 5'7" M/18" / Rider Height: 5'7" - 5'10" L/20" / Rider Height: 5'8" - 5'11"
Seat Tube Length 400mm 450mm 500mm
Stand Over Height 787mm 804mm 820mm
Top Tube Length 580mm 609mm 630mm
Stack 596mm 606mm 605mm
Reach 409mm 435mm 456mm
Head Tube Length 110mm 120mm 120mm
Head Angle 68.5° 68.5° 68.5°
Seat Angle 74° 74° 74°
Wheel Base
Chain Stay Length 460mm 460mm 460mm
Fork Offset
BB Drop 60mm 60mm 60mm
Stem Length
Handlebar Width
Crank Length
Seat Post Length

Customer Reviews Write Your Own

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Overall Quality

Great Bike

Review by Matt
Overall Quality

This is my favorite bike, I am using it unconventionally and have added a rack and baskets to the sides and top of the rear rack. I ride this through my pasture and use it to haul feed to goats. It is also fun for just ridding around. The only issue I had was stopping power, I had to change out the brakes for better ones.

(Posted on 6/22/2017)


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