Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2020 GT Mach One Pro
Previous used estimate
$131 - $134
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 GT Mach One Pro
12-month projected trend
5%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2020 GT Mach One Pro
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Mach One model years
2021$174 - $179▲ 33% vs. 20202020$131 - $134Currently viewing
2019$124 - $128▼ 5% vs. 2020
2018$122 - $126▼ 6% vs. 2020
2017$109 - $112▼ 17% vs. 2020
2016$102 - $105▼ 22% vs. 2020
2015$99 - $102▼ 24% vs. 2020
2012$71 - $73▼ 46% vs. 2020
2011$71 - $73▼ 46% vs. 2020
2006$63 - $65▼ 52% vs. 2020
2005$63 - $65▼ 52% vs. 2020Compare Mach One Pro models
2 modelsChoose a different build or frame style to see its value.
Overview
About this bike
Breaking the barrier to racing BMX shouldn’t cost an arm and a leg. - GT Mach One Race, 6061-T6 aluminum frame - GT BMX Hi-Ten steel fork - GT Power Series Tubular Cr-Mo 3-piece crank - 36/14 gearing - Alloy V-brake
Specifications
- Subtype
- BMX
- Category
- BMX
- Component Fork
- GT BMX design, 1-1/8" Steerer x 31.8mm blades, Hi-Ten Blades
- Component Hubs
- Front: Steel Body, 36h, 3/8" Axle
- Component Size
- 20.75-inch
- Component Stem
- GT Top Load 1-1/8" Aluminum, 50mm
- Product Family
- Mach One
- Component Chain
- KMC S1
- Component Color
- Red
- Component Frame
- GT Mach One Race, 6061-T6 AL, Euro BB, Reverse Dropouts, 1-1/8" Integrated H/T
- Component Brakes
- Alloy V-type
- Component Pedals
- GT Low Profile FS Platform Design, PP Material, Boron Axle
- Component Saddle
- Railed
- Component Headset
- 1-1/8" Integrated Design, 45X45 Degree Sealed Bearings
- Component Crankset
- GT Power Series Tubular Cr-Mo 3pc., 175mm Arms, 19mm x 8T Splined Spindle, GT 36T Steel Sprocket
- Component Handlebar
- GT Race, Steel, 8.25"H x 29"W, 11° Back, 3° Up, 19mm O.D. Cross Bar
- Component Seat Post
- Alloy, 25.4mm x 200mm
- Component Front Tire
- GT Wing, 20 x 1.75"
- Component Tape Grips
- GT Statement
- Component Brake Levers
- Alloy V-type
- Component Bottom Bracket
- Euro Sealed Bearings
- Hubs
- Front: Steel Body, 36h, 3/8" Axle
- Crankset
- GT Power Series Tubular Cr-Mo 3pc., 175mm Arms, 19mm x 8T Splined Spindle, GT 36T Steel Sprocket
- Pedals
- GT Low Profile FS Platform Design, PP Material, Boron Axle
- Bottom Bracket
- Euro Sealed Bearings
- Chain
- KMC S1
- Saddle
- Railed
- Handlebar
- GT Race, Steel, 8.25"H x 29"W, 11° Back, 3° Up, 19mm O.D. Cross Bar
- Headset
- 1-1/8" Integrated Design, 45X45 Degree Sealed Bearings
- Stem
- GT Top Load 1-1/8" Aluminum, 50mm
- Brake Levers
- Alloy V-type
- Brakes
- Alloy V-type
- Fork
- GT BMX design, 1-1/8" Steerer x 31.8mm blades, Hi-Ten Blades
- Frame
- GT Mach One Race, 6061-T6 AL, Euro BB, Reverse Dropouts, 1-1/8" Integrated H/T
- Seat Post
- Alloy, 25.4mm x 200mm
- Tape/Grips
- GT Statement
- Color
- Red
- Size
- 20.75-inch
- Front Tire
- GT Wing, 20 x 1.75"
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.