Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2021 GT Mach One 16
Previous used estimate
$132 - $136
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 GT Mach One 16
12-month projected trend
9%
Direction and magnitude, not judgment
vs. category average
1%
Drops faster than category avg
Price over time - 2021 GT Mach One 16
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Mach One model years
2021$132 - $136Currently viewing
2020$138 - $142▲ 4% vs. 2021
2019$124 - $128▼ 6% vs. 2021
2018$122 - $126▼ 7% vs. 2021
2017$109 - $112▼ 18% vs. 2021
2016$102 - $105▼ 23% vs. 2021
2015$99 - $102▼ 25% vs. 2021
2012$71 - $73▼ 46% vs. 2021
2011$71 - $73▼ 46% vs. 2021
2006$63 - $65▼ 52% vs. 2021
2005$63 - $65▼ 52% vs. 2021Compare Mach One 16 models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
Our smallest Mach One offering with 16" wheels. Ideal for a rider 3'6" & under.
Specifications
- Subtype
- BMX
- Category
- BMX
- Component Fork
- Rigid, Hi-Ten Steel, 1" Steerer
- Component Hubs
- Front: Steel Body, 28h, 3/8" Axle Rear: Steel Flip Flop Thread-on Body, Freewheel, 28h, 3/8" Axle
- Component Rims
- Alloy Single Wall, 28h
- Component Size
- 16-inch
- Component Stem
- Alloy Ahead, 37mm
- Product Family
- Mach One
- Component Chain
- KMC S1
- Component Color
- Gloss Team Blue/GT Yellow/Silver
- Component Frame
- GT Mach One Race MK2, 6061 Alloy, American BB, Reverse Dropouts, V-Brakes, 1-1/8" H/T
- Component Tires
- Innova, 16 x 1.75"
- Component Brakes
- Alloy V-type
- Component Pedals
- GT Mini Size Platform, PP Material
- Component Saddle
- GT Uni Mini Padded
- Component Headset
- 1-1/8" Threadless, Steel
- Component Crankset
- Steel Forged 1pc., 114mm Arms
- Component Seatpost
- 22.2 Integrated
- Component Chainrings
- 36T Steel Chain Ring
- Component Handlebars
- GT Race, Steel, 3"H x 17.7"W
- Component Tape Grips
- GT Junior
- Component Bottom Bracket
- American
- Component Cassette Freewheel
- 16T Freewheel
- Hubs
- Front: Steel Body, 28h, 3/8" Axle Rear: Steel Flip Flop Thread-on Body, Freewheel, 28h, 3/8" Axle
- Rims
- Alloy Single Wall, 28h
- Tires
- Innova, 16 x 1.75"
- Crankset
- Steel Forged 1pc., 114mm Arms
- Pedals
- GT Mini Size Platform, PP Material
- Bottom Bracket
- American
- Chain
- KMC S1
- Seatpost
- 22.2 Integrated
- Saddle
- GT Uni Mini Padded
- Headset
- 1-1/8" Threadless, Steel
- Stem
- Alloy Ahead, 37mm
- Brakes
- Alloy V-type
- Chainrings
- 36T Steel Chain Ring
- Fork
- Rigid, Hi-Ten Steel, 1" Steerer
- Frame
- GT Mach One Race MK2, 6061 Alloy, American BB, Reverse Dropouts, V-Brakes, 1-1/8" H/T
- Handlebars
- GT Race, Steel, 3"H x 17.7"W
- Tape/Grips
- GT Junior
- Color
- Gloss Team Blue/GT Yellow/Silver
- Size
- 16-inch
- Cassette/Freewheel
- 16T Freewheel
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.