Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
2019 Diamondback el Oso Tres
Previous used estimate
$641 - $659
Actual value depends on condition, size, and local demand.
Value Guide market data · 2019 Diamondback el Oso Tres
12-month projected trend
12%
Direction and magnitude, not judgment
vs. category average
5%
Drops faster than category avg
Price over time - 2019 Diamondback el Oso Tres
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Overview
About this bike
We designed Diamondback's el Oso Tres to be capable of any adventure you point it at. Of course, you might argue that a fat bike with a suspension fork is overkill, what with the high-volume/low-pressure Maxxis Minion FBF/FBR 26x4.0-inch tires already soaking up rocks and gripping Mother Earth like they were slathered in glue. Then again, we built this bike with the most remote and technical trails in mind. When you're days away from the nearest trailhead, a burly, winter-tested fork plus a reliable parts package all come in really handy. The KS E30i dropper seatpost improves maneuverability on dicey downhills. Thru-axles front and rear add stiffness for enhanced steering precision. Overkill? Heck. Yeah. Bring on the overkill. Bring on the adventure. - The 6061-T6 aluminum frame/fork with hydroformed tubes packs a punch without also packing extra weight - Manitou Mastodon Comp 100mm travel fork clears your way through the toughest terrain - Powerful Shimano SLX M7000 hydraulic disc brakes increase your control - No mountain is too steep with Raceface Aeffect cranks and Shimano 1x11-speed drivetrain components - Maxxis Minion FBF/FBR 26x4.0" tires provide gobs of traction - KS E30i dropper seatpost lets you drop that WTB Volt Race saddle and improve maneuverability on dicey downhills
Specifications
- Subtype
- Fatbike
- Category
- Mountain
- Component Fork
- Manitou Mastodon Comp, 100mm, 34mm Stanchion, 3 Position Compression Adjust, VTT Cartidge, Hex-Lock Thru-axle, 1.5" Taper Steerer
- Component Hubs
- Sun Ringle, 32h Alloy, Sealed Cartridge Bearing
- Component Size
- Small, Medium
- Component Stem
- DB35 Alloy, 60mm Reach, 35mm Bar Bore
- Product Family
- el
- Component Axles
- Front: 150 x 15mm thru-axle Rear: 197 x 12mm thru-axle
- Component Chain
- KMC X11 EPT Anti-Rust, 11 Speed
- Component Color
- Gloss Black
- Component Frame
- El Oso 6061-T6 Double Butted Aluminum, Formed Top and Down Tube, 1.5" Tapered Machined Headtube, Fits up to 26x5" Tire
- Component Brakes
- Shimano SLX M7000, w/180mm Front / 180mm Rear Rotors
- Component Pedals
- DB CNC Platform, Sealed Cartidge Bearing w/Replaceable Pins
- Component Saddle
- WTB Volt Race
- Component Headset
- FSA No.57, Sealed Cartridge
- Component Cassette
- Shimano XT M8000, 11 Speed, 11-46T
- Component Crankset
- Raceface Æffect, Direct Mount
- Component Shifters
- Shimano XT M8000 Shadow Plus, 11 Speed
- Component Handlebar
- DB35 Alloy, 760mm Wide, 15mm Rise, 35mm Bar Bore
- Component Seat Post
- KS E30i Dropper, SM = 125mm, MD/LG/XL = 150mm w/Southpaw Remote
- Component Chainrings
- 28T Narrow Wide
- Component Front Tire
- Front: Maxxis Minion FBF 26x4.0" EXO, TLR, Folding Rear: Maxxis Minion FBR 26x4.0" EXO, TLR, Folding, 120tpi
- Component Tape Grips
- DB4L 135mm Lock On
- Component Brake Levers
- Shimano SLX M7000
- Component Bottom Bracket
- Raceface Outboard Bearing
- Component Rear Derailleur
- Shimano XT M8000 Shadow Plus, 11 Speed, GS
- Component Accessories Extras
- Tool Kit, Carbon Paste
- Hubs
- Sun Ringle, 32h Alloy, Sealed Cartridge Bearing
- Crankset
- Raceface Æffect, Direct Mount
- Pedals
- DB CNC Platform, Sealed Cartidge Bearing w/Replaceable Pins
- Bottom Bracket
- Raceface Outboard Bearing
- Chain
- KMC X11 EPT Anti-Rust, 11 Speed
- Saddle
- WTB Volt Race
- Handlebar
- DB35 Alloy, 760mm Wide, 15mm Rise, 35mm Bar Bore
- Headset
- FSA No.57, Sealed Cartridge
- Rear Derailleur
- Shimano XT M8000 Shadow Plus, 11 Speed, GS
- Stem
- DB35 Alloy, 60mm Reach, 35mm Bar Bore
- Accessories & Extras
- Tool Kit, Carbon Paste
- Axles
- Front: 150 x 15mm thru-axle Rear: 197 x 12mm thru-axle
- Brake Levers
- Shimano SLX M7000
- Brakes
- Shimano SLX M7000, w/180mm Front / 180mm Rear Rotors
- Cassette
- Shimano XT M8000, 11 Speed, 11-46T
- Chainrings
- 28T Narrow Wide
- Fork
- Manitou Mastodon Comp, 100mm, 34mm Stanchion, 3 Position Compression Adjust, VTT Cartidge, Hex-Lock Thru-axle, 1.5" Taper Steerer
- Frame
- El Oso 6061-T6 Double Butted Aluminum, Formed Top and Down Tube, 1.5" Tapered Machined Headtube, Fits up to 26x5" Tire
- Seat Post
- KS E30i Dropper, SM = 125mm, MD/LG/XL = 150mm w/Southpaw Remote
- Shifters
- Shimano XT M8000 Shadow Plus, 11 Speed
- Tape/Grips
- DB4L 135mm Lock On
- Color
- Gloss Black
- Size
- Medium
- Front Tire
- Front: Maxxis Minion FBF 26x4.0" EXO, TLR, Folding Rear: Maxxis Minion FBR 26x4.0" EXO, TLR, Folding, 120tpi
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.