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KidsPartial spec

2010 GT Mach One Jr. CB

Launched at $180

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What a used one is worth

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New

$40

$20 to $55

Like new

$38

$19 to $52

Excellent

$36

$18 to $49

Good

$30

$15 to $41

Fair

$22

$11 to $30

For parts

$12

$6 to $16

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

Overview

Brand
GT
Model family
Mach One
Model year
2010
Category
Kids · bmx
Frame material
steel
Wheel size
16
Launch MSRP (US)
$180

Drivetrain

Chainrings
1
Electronic
false

Build

Fork
GT BMX design, 1" threaded steer, 1-1/8" O.D. blades
Stem
4-bolt alloy top, steel quill
Tires
GT Wing design, 16x2.125" (f&r)
Brakes
front: Alloy side-pull caliper; rear: hub type; levers: Alloy / Resin
Saddle
GT Jr. BMX design, padded with 7mm rails
Wheels
rims: Alloy, 28 hole; front hub: Steel, 28 hole, 3/8" axle; rear hub: Coaster brake, 28 hole, 16T cog; spokes: 14G
Crankset
Forged one-piece type, 114mm/ '06 design GT steel, 32T.
Seatpost
Steel, 25.4mm O.D.
Handlebar
GT BMX design, Hi-Ten, 5.7" rise

Spec from GT's then current 2010 model page (US site, captured 2009-09; model year from GT's model code G10MAC1JCB in the page title). Frame: GT BMX dirt jump styling, Hi-Ten steel Bottom bracket: Steel, Ball type Chain: KMC Z410 Headset: Steel, 1" Pedals: Jr. BMX design, resin Grips: GT Wing waffle design Seat clamp: Alloy, GT Wing logo Extras: Training wheels, Pad set Nipples: Brass MSRP $179.99 read from the product's own price block (under the model name) on GT's US page captured 2009-09, inside the 2010 launch window (fix round 2026-10-21).

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