Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
Previous used estimate
$152 - $157
Actual value depends on condition, size, and local demand.

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Trek's 820 is a fun, versatile bike at a sweet price. It features a great-riding steel frame with a relaxed, upright riding position you'll love. Up front, a bump-busting suspension fork smooths the road and trail. Plus, it sports a quick-shifting, easy-pedaling 21-speed drivetrain, powerful linear-pull brakes and quality Bontrager components, such as a a comfortable saddle and tough mountain bike-sized wheels with versatile tires.
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.