Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$322 - $331
Actual value depends on condition, size, and local demand.

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Head on over to the big set of jumps, Diamondback's Assault is ready. The sturdy aluminum frame is fronted with Fox's dirt-jumping specialist, the 831 fork. Together, they're made for going big, pumping hard and landing smooth. Plenty of sturdy components are featured throughout, such as Alienation rims, tubular chromoly cranks and an Alienation/Pivotal seat and post so you know it's ready for the jumps and the street. Plus, the Gravity handlebars, grippy Kenda tires and rear Shimano hydraulic disc brake keep you rolling fast and light.
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.