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2021 GT Mach One 16

Launched at $275Lists today at $280 (2026-09)

Own a 2021 GT Mach One 16?

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

What a used one is worth

New

$154

$99 to $185

Like new

$146

$94 to $176

Excellent

$138

$89 to $167

Good

$115

$74 to $139

Fair

$85

$55 to $102

For parts

$46

$30 to $56

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

Fork: Rigid, Steel, 1" Steerer
Stem: Alloy Ahead Stem, 37mm
Tires: Innova, 16 x 1.75"
Brakes: Alloy V-type
Saddle: GT Uni Mini Padded
Wheels: Alloy Single Wall, 28h; Steel Body, 28h, 3/8" Axle / Steel Flip Flop Thread-on Body, Freewheel, 28h, 3/8" Axle
Cassette: 16T Freewheel
Crankset: Steel Forged 1pc., 114mm Arms, 36T Steel Chain Ring
Seatpost: 22.2 Integrated
Handlebar: GT Race, Steel, 3"H x 17.7"W

One Size: Chainstay mm: 9.45; Wheelbase mm: 28.94; Head angle deg: 73; Seat angle deg: 71

GT model code G41801U. 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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