Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Marin
Previous used estimate
$58 - $59
Actual value depends on condition, size, and local demand.

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Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
With its rugged construction, attention to safety and sharp looks, Marin's MBX 50 is a great first bike and an excellent introduction to the wonders of cycling. The MBX 50 also has a suspension fork so the introduction to off-road riding is that much easier. A chainguard and steel training wheels are included, 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.