BMXVerified spec

2021 GT Mach One Mini

Launched at $400Lists today at $360 (2026-09)

Own a 2021 GT Mach One Mini?

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

What a used one is worth

New

$224

$144 to $269

Like new

$212

$137 to $256

Excellent

$201

$130 to $242

Good

$168

$108 to $202

Fair

$123

$79 to $148

For parts

$67

$43 to $81

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" Steerer, 3/8" Dropouts
Stem: GT Top Load, 1", 40mm
Tires: Kenda Race, 20 x 1-3/8"
Brakes: Alloy V-type
Saddle: GT Uni Mini Padded
Wheels: Alloy Double Wall, 28h; Steel Body, 28h, 3/8" Axle / Steel Flip Flop Thread-on Body, Freewheel, 28h, 3/8" Axle
Cassette: 16T Freewheel
Crankset: GT Alloy Forged 3pc, 140mm, Square Taper, 38T
Seatpost: 22.2 Integrated
Handlebar: GT Race, Steel, 2"H x 22"w/ 8° Back, 2° Up

XS: Chainstay mm: 13.15; Wheelbase mm: 33; Head angle deg: 13.15; Seat angle deg: 72

GT model code G41401U. Model year from the product code suffix on GT's page (_21). Launch price: GT US page captured 2020-10, inside the model year.

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