Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
Previous used estimate
$683 - $703
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.
Watch the miles add up on Trek's amazing Madone 5.1. Sporting Trek's TCT carbon frame, this road rocket boasts ingenious technology for a superior ride, such as a 90mm-wide bottom bracket for maximum efficiency, integrated headset and bottom bracket cups with bearings that simply press into the frame to save weight and reduce maintenance. And the seatmast accomplishes the opposing characteristics of boosting compliance for supreme comfort and stiffening up the frame. And, this trick machine is equipped with Bontrager's corner-carving Race X Lite fork and SRAM's Rival 10-speed components for flawless shifting and braking. You'll love the aero Bontrager Race wheels, too; they're light, they're fast and they ride incredibly well.
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.