Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Giant
Previous used estimate
$479 - $492
Actual value depends on condition, size, and local demand.

12-month projected trend
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Direction and magnitude, not judgment
vs. category average
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Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Giant's Aeryn Alliance is a woman's best weapon against the clock. It features Alliance aluminum/composite technology for the perfect balance of lightness, stiffness and awesome aerodynamics to get you from T1 to T2 in record time! And, the composite's vibration-damping qualities and women's-specific geometry make the Aeryn Alliance comfortable so you're fresher for the run. Plus, it's loaded with sweet components including a crisp-shifting Shimano Ultegra rear derailleur, wind-slicing Giant Aero hoops and Dura-Ace bar end shifters so you don't have to break from your tuck.
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.