Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$254 - $261
Actual value depends on condition, size, and local demand.

12-month projected trend
8%
Direction and magnitude, not judgment
vs. category average
4%
Drops faster than category avg
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
Choose a different build or frame style to see its value.
If you had one bike that could survive a theoretical zombie apocalypse, it’d be Diamondback's 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 26x5" 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.
Inspection
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Inspection
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Confirm fork and rear shock service intervals and check pivot bearings for play.