Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Marin
Previous used estimate
$71 - $73
Actual value depends on condition, size, and local demand.

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Start junior off right with Marin's MBX 250. This awesome ride is made from 7005 aluminum, just like adult bikes, for awesome strength and reliability. The durable 3-piece chromoly cranks and 36-hole Alex wheels can withstand all of junior's "stunts." Plus, the rear linear-pull brake makes for easy stopping.
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.