Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
Previous used estimate
$906 - $932
Actual value depends on condition, size, and local demand.

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Trek's all-carbon Superfly 100 is the ultimate 29er with 100mm of rear travel at a hardtail weight. The Superfly’s monocoque carbon frame is incredibly light and stiff and features G2 Geometry with a custom, G2-specific Fox F29 fork to give you control on descents, power on climbs, as well as super-quick handling and snappy steering. More control comes from the shortened wheelbase; it all delivers a bike that retains all the big-wheeled benefits of 29ers and none of their drawbacks. Plus, the Superfly is adorned with a solidly light parts package, including Bonty's Race Lite wheels, 10-speed SRAM X-9 shifting and ultra-powerful Avid Elixir discs.
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.