Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$369 - $380
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. Its sturdy Diamondback aluminum frame is fronted with Fox's dirt-jumping specialist, the 831 fork. Together, they're ideal for going big, pumping hard and landing smooth. Plenty of dirt-ready components are featured throughout, such as the Alienation rims, tubular-chromoly cranks and the Pivotal seat. Plus, the crazy-wide Gravity handlebars, quick Kenda tires and rear Shimano hydraulic disc keep you landing straight, rolling fast and set up just right. It all adds up to a bike approved by DB's team of pros, so you know it's ready for the jumps and the street.
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.