Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$64 - $66
Actual value depends on condition, size, and local demand.

12-month projected trend
8%
Direction and magnitude, not judgment
vs. category average
5%
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.
We don’t know where it comes from, but your kid's undying love of dirt is a common—and treatable—condition. Diamondback's Cobra 24 can help. It's a great first mountain bike, helping to bridge the gap to adult bikes. 24to; wheels roll over obstacles without being too big to handle, and with 21 gears and a suspension fork it can conquer dirt trails. With a durable steel frame and tough wheels, it's the cure for satisfying your little dirt maniac.
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.