Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
Previous used estimate
$71 - $73
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.
Choose a different build or frame style to see its value.
Your child will be the fastest on the block on GT's speedy Mach One Expert. The frame is built with a low stand-over height so it's ideal for youngsters not quite ready for a full-size BMX. This sweet rig also features a coaster brake, a powerful linear-pull brake, durable bars and dirt-ready GT 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.