BMXVerified spec

2021 GT Mach One Pro 24

Launched at $375Lists today at $475 (2026-09)

Own a 2021 GT Mach One Pro 24?

Track its value in your garage, or list it for sale locally in a few taps.

What a used one is worth

New

$210

$135 to $252

Like new

$199

$129 to $240

Excellent

$189

$122 to $227

Good

$157

$101 to $189

Fair

$115

$74 to $139

For parts

$63

$41 to $76

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Fork: GT BMX Race, Hi-Ten Steel 1 1/8" Steerer, Tapered Legs, 3/8" Dropouts
Stem: GT Top Load, 1-1/8", 50mm
Tires: GT Wing (F) 24 x 2.1" (R) 24 x 1.75"
Brakes: Alloy V-type
Saddle: Railed
Wheels: Alloy Single Wall, 36h; Steel Body, 36H, 3/8" Axle / Steel Flip Flop Thread-on Body, Freewheel, 36h, 3/8" Axle
Cassette: 18T Freewheel
Crankset: GT Power Series Tubular Cr-Mo 3pc., 175mm Arms, 19mm x 8T Splined Spindle, Steel Spider, GT 42T Steel Chainring
Seatpost: Alloy, 27.2mm x 200mm
Handlebar: GT Race, Steel, 6.5"H x 29"W, 4° Up, 8° Back

LG: Chainstay mm: 15.43; Wheelbase mm: 39; Head angle deg: 74; Seat angle deg: 70

GT model code G41301U. Model year from the product code suffix on GT's page (_21). Launch price: GT US page captured 2020-09, inside the model year.

No Mach One listed right now. Save a search in the app and get told when one appears.