Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
Previous used estimate
$75 - $77
Actual value depends on condition, size, and local demand.

12-month projected trend
4%
Direction and magnitude, not judgment
vs. category average
2%
Drops faster than category avg
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.
The Mach One 16 FW is a great first kids' BMX bike, designed to be the perfect introduction into the world of racing. It features a durable aluminum with a 13.5-inch top tube that's decked out with GT's iconic race styling. From a beginner learning at the pump track to an aspiring racer at the track, the Mach One provides the experience kids are looking for.
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.