Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2019 GT Mach One Pro
Previous used estimate
$109 - $112
Actual value depends on condition, size, and local demand.
Value Guide market data · 2019 GT Mach One Pro
12-month projected trend
4%
Direction and magnitude, not judgment
vs. category average
1%
Holds value better than category avg
Price over time - 2019 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▲ 60% vs. 2019
2020$138 - $142▲ 27% vs. 20192019$109 - $112Currently viewing
2018$122 - $126▲ 12% vs. 2019
2017$109 - $1120% vs. 2019
2016$102 - $105▼ 6% vs. 2019
2015$99 - $102▼ 9% vs. 2019
2012$71 - $73▼ 35% vs. 2019
2011$71 - $73▼ 35% vs. 2019
2006$63 - $65▼ 42% vs. 2019
2005$63 - $65▼ 42% vs. 2019Compare 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. Designed to be the perfect introduction into the world of racing, the Mach One is built to suit every need. It features a light and strong 6061 aluminum frame with a steel fork and internal sealed headset bearings. Modern touches like the GT Power Series 3-piece crank, top-load stem, and integrated saddle/stem combo make it a capable rig.
Specifications
- Subtype
- BMX
- Category
- BMX
- Component Fork
- GT BMX design, 1-1/8" Steerer x 31.8mm blades, Hi-Ten Blades
- Component Size
- 20.6-inch
- Component Stem
- GT Top Load 1-1/8" Aluminum, 50mm Length
- Product Family
- Mach One
- Component Axles
- 3/8" (F/R)
- Component Chain
- KMC Z410
- Component Color
- Gloss Electric Blue w/Neon Yellow & White
- Component Frame
- GT Mach One Race, 6061-T6 AL, Euro BB, Reverse Dropouts, 1-1/8" Integrated H/T
- Component Brakes
- Rear Alloy V-type
- Component Pedals
- GT Low Profile FS Platform Design, PP Material, Boron Axle
- Component Saddle
- GT Uni Pro padded
- Component Headset
- 1-1/8" Integrated Design, 45X45 Degree Sealed Bearings
- Component Crankset
- GT Power Series Tubular Cr-Mo 3-Piece, 175mm Arms, 19mm x 8T Splined Spindle
- Component Handlebar
- GT Race, Steel, 8.25"H x 29"W, 11° sweep, 3° Up, 19mm O.D. Cross Bar
- Component Seat Post
- AL Integrated w/ Saddle, 27.2 x 250mm
- Component Chainrings
- GT 38T Steel Sprocket
- Component Front Tire
- GT Wing, 20 x 1.75"
- Component Tape Grips
- GT Statement
- Component Bottom Bracket
- External Euro Sealed Bearings
- Crankset
- GT Power Series Tubular Cr-Mo 3-Piece, 175mm Arms, 19mm x 8T Splined Spindle
- Pedals
- GT Low Profile FS Platform Design, PP Material, Boron Axle
- Bottom Bracket
- External Euro Sealed Bearings
- Chain
- KMC Z410
- Saddle
- GT Uni Pro padded
- Handlebar
- GT Race, Steel, 8.25"H x 29"W, 11° sweep, 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 Length
- Axles
- 3/8" (F/R)
- Brakes
- Rear Alloy V-type
- Chainrings
- GT 38T Steel Sprocket
- 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
- AL Integrated w/ Saddle, 27.2 x 250mm
- Tape/Grips
- GT Statement
- Color
- Gloss Electric Blue w/Neon Yellow & White
- Size
- 20.6-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.