Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
2019 Diamondback el Oso Dos
Previous used estimate
$423 - $436
Actual value depends on condition, size, and local demand.
Value Guide market data · 2019 Diamondback el Oso Dos
12-month projected trend
12%
Direction and magnitude, not judgment
vs. category average
6%
Drops faster than category avg
Price over time - 2019 Diamondback el Oso Dos
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Overview
About this bike
The fastest human alive topped out at 27 miles per hour. Fastest bear? 35 miles per hour. The takeaway? Bears are fast; particularly this bear, Diamondback's el Oso Dos. We made this fat bike quick by designing it around a rigid platform to shave pounds. Thru-axles front and rear add stiffness for enhanced steering precision. Let the gigantic tires take care of the suspension—something they do quite well. That means you can ride this bike up and over just about anything and under any conditions, including through snow, sand, or mud. Even when the weather gets bearish, el Oso Dos will keep you in the saddle. - The 6061-T6 aluminum frame/fork with hydroformed tubes packs a punch without also packing extra weight - Rear thru-axle adds stiffness - Twenty reliable gears to scale any terrain, courtesy of Shimano - Powerful TRP Slate X2 disc brakes provide control in all conditions - DB El Oso Custom air formed alloy fork rides as well as it looks. It's also plenty stiff, thanks to its 15mm thru-axle - 26x 4.5" tires are wide enough to take you places other bikes fear to tread
Specifications
- Subtype
- Fatbike
- Category
- Mountain
- Component Fork
- DB El Oso Custom Rigid Air Formed Alloy Fork, 1.5 Taper Steerer
- Component Hubs
- 32h Alloy, Sealed Cartridge Bearing
- Component Size
- Small, Medium, Large
- Component Stem
- DB 3D Forged, 7° Rise, 31.8 Bar Bore
- Product Family
- El Oso
- Component Axles
- Front: 150 x 15mm thru-axle Rear: 197 x 12mm thru-axle
- Component Chain
- KMC X10, 10 Speed, EPT Anti-Rust
- Component Color
- Grey
- Component Frame
- El Oso 6061-T6 Double Butted Aluminum, Formed Top / Down Tube, 1.5" Tapered Machined Headtube, Fits up to 26x5" Tire
- Component Brakes
- TRP Slate X2, w/160mm Front /160mm Rear Rotors
- Component Pedals
- DB4L Alloy Platform w/Replaceable Pins
- Component Saddle
- WTB Volt Comp
- Component Spokes
- 14g Stainless Steel
- Component Headset
- FSA No.57, Sealed Cartridge
- Component Cassette
- Shimano HG500, 10 Speed, 11-42T
- Component Crankset
- FSA Comet Mega Exo
- Component Shifters
- Shimano Deore M6000, 10 Speed
- Component Handlebar
- Diamondback, 740mm Wide, 15mm Rise, 31.8 Bar Bore
- Component Rear Tire
- Kenda Juggernaut 26x4.5", 60tpi, Folding
- Component Seat Post
- DB Alloy Micro Adjust, 30.9mm
- Component Chainrings
- 36/24T
- Component Front Tire
- Kenda Juggernaut 26x4.5", 60tpi, Folding
- Component Tape Grips
- DB High Density Foam Grip
- Component Rims Wheels
- Diamondback 90mm Wide w/Cutouts, 32h Alloy Single wall
- Component Brake Levers
- TRP Slate X2
- Component Bottom Bracket
- FSA Mega Exo
- Component Rear Derailleur
- Shimano Deore M6000 Shadow Plus, 10 Speed, GS
- Component Front Derailleur
- Shimano Deore M617 Side Swing, Front Pull, Direct Mount
- Component Accessories Extras
- Tool Kit
- Hubs
- 32h Alloy, Sealed Cartridge Bearing
- Crankset
- FSA Comet Mega Exo
- Pedals
- DB4L Alloy Platform w/Replaceable Pins
- Bottom Bracket
- FSA Mega Exo
- Chain
- KMC X10, 10 Speed, EPT Anti-Rust
- Saddle
- WTB Volt Comp
- Handlebar
- Diamondback, 740mm Wide, 15mm Rise, 31.8 Bar Bore
- Headset
- FSA No.57, Sealed Cartridge
- Front Derailleur
- Shimano Deore M617 Side Swing, Front Pull, Direct Mount
- Rear Derailleur
- Shimano Deore M6000 Shadow Plus, 10 Speed, GS
- Rear Tire
- Kenda Juggernaut 26x4.5", 60tpi, Folding
- Stem
- DB 3D Forged, 7° Rise, 31.8 Bar Bore
- Accessories & Extras
- Tool Kit
- Axles
- Front: 150 x 15mm thru-axle Rear: 197 x 12mm thru-axle
- Brake Levers
- TRP Slate X2
- Brakes
- TRP Slate X2, w/160mm Front /160mm Rear Rotors
- Cassette
- Shimano HG500, 10 Speed, 11-42T
- Chainrings
- 36/24T
- Fork
- DB El Oso Custom Rigid Air Formed Alloy Fork, 1.5 Taper Steerer
- Frame
- El Oso 6061-T6 Double Butted Aluminum, Formed Top / Down Tube, 1.5" Tapered Machined Headtube, Fits up to 26x5" Tire
- Seat Post
- DB Alloy Micro Adjust, 30.9mm
- Shifters
- Shimano Deore M6000, 10 Speed
- Tape/Grips
- DB High Density Foam Grip
- Color
- Grey
- Size
- Large
- Spokes
- 14g Stainless Steel
- Rims/Wheels
- Diamondback 90mm Wide w/Cutouts, 32h Alloy Single wall
- Front Tire
- Kenda Juggernaut 26x4.5", 60tpi, Folding
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.