Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$50 - $52
Actual value depends on condition, size, and local demand.

12-month projected trend
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Direction and magnitude, not judgment
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Diamondback's Mini Viper is the perfect bike for the little guy with big dreams of fun off-road rides. Its durable BMX-style steel frame is easy to mount and dismount, while its heavy-duty training wheels make learning to ride safe and easy. The Mini Viper has a coaster brake for excellent stopping power, too.
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.