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.

12-month projected trend
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Direction and magnitude, not judgment
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Trek's 820 is a great all-around mountain bike with in-town utility at a sweet price. It rolls on a great-riding steel frame with a relaxed, upright 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 Shimano drivetrain, powerful linear-pull brakes and quality Bontrager components.
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.