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2017 Diamondback

El Oso

A 26″ aluminum frame hardtail fat bike with upper mid-range components.
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FrameAluminum
SuspensionHardtail, 100mm
ForkRockShox Bluto RL
Wheels26″ Aluminum
Drivetrain2 × 10
GroupsetSLX, Deore
BrakesShimano Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
El Oso
Other Fat bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

El Oso

23 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'7"

MD

5'6" – 5'11"

LG

5'9" – 6'2"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
Bicycling
The Diamondback El Oso Is an Affordable and Rad Fat Bike

Feb 2018

Want to steamroll over terrain regular bikes can't conquer? This line of fat bikes is a great bargain—and there's even a mini-version for your sidekick.

Highs
  • Lightweight aluminum frame

  • Quality midrange components

  • Versatile for snow and trail surfaces

  • Good value for price

  • Nimble despite huge tires

  • Bikepacking-friendly frame with rack mounts

  • Kids version available

Lows
  • Lower-priced models have rigid fork and mechanical brakes

  • Still somewhat heavy at 34 lbs 13 oz (Grande model)

Read Review

Geometry
Specs
Build
Frame

El Oso Butted 6061-T6 Aluminum w/ Formed Top / Down Tube, 1.5" Tapered Machined Headtube, 197mm Thru Axle, Fits up to 26x5" tire

Fork

RockShox Bluto 100mm Solo Air, 32mm Stanchion, Rebound, Lockout, 150mm Thru, 1.5 Taper

Travel100mm

Spring TypeAir

Bottom Bracket

Raceface Outboard Bearing

Headset

FSA C-40 Sealed 1-1/8"/1.5" ACB Integrated

Stem

DB 3D Forged, +/-7° Rise 31.8

Handlebar

DB Pro Bar750mm width, 15mm rise, 31.8mm barbore

Saddle

DB Race M-series saddle w/ cromo rails

Seatpost

DB Micro Adjust 30.9mm

TypeRigid

Pedals

DB Platform CNC, w/replaceable pins, sealed cartidge bearing

Grips

DB4L Lock-on 135mm D2 Kraton

Groupset
Rear Derailleur

Shimano SLX M615 Shadow Plus

Front Derailleur

Shimano Deore M618, High Direct Mount

Crank

Raceface Ride, 36/26T

Shifters

Shimano SLX M670 10spd

Cassette

Shimano HG50 10spd (11-36t)

Chain

KMC X10 EPT Anti-Rust

Brakes

Shimano M447 Hydraulic Disc - 180/180mm Rotor

TypeShimano Hydraulic Disc

Brake Levers

Shimano M506 Hydraulic Disc

Wheels
Rims

DB 95Wide w/55mm Cutout, Singlewall 32h

Spokes

14g Stainless Steel

Front Hub

Alloy 32h Sealed Cartridge Bearing 150mmx15mm Thru

Rear Hub

Alloy 32h Cassette, Sealed Cartridge Bearing 197mmx12mm Thru

Tires

Kenda Juggernaut 26x4.5"

Rider Notes
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First added January 17

Last updated January 17

Not listed for 3,419 days