2015 GT Mach One Expert 20
2015 GT Mach One Expert 20 is a Hi-Ten steel BMX race bike built for entry-level racing, featuring a 1-piece forged crankset and 36t steel sprocket.
Description
When you’re buying a bike from the company that has been BMX from the beginning, you know you’re getting the love, dedication, and innovation that comes along with it. Designed to be the perfect introduction into the world of racing, the Mach One is available in a variety of sizes, built to suit ever need.
KEY FEATURES
Technical specification
Geometry
- Sizes
- 20" wheel /19" top tube
Frame & Fork
- Frame
- GT BMX Bent C/S Race styling, Hi-Ten steel, American BB
- Fork
- GT BMX design, 1-1/8", 31.8mm blades, Hi-Ten Steel
Drivetrain
- Crankset
- Forged 1-piece type, 127mm Length 36t GT Steel Sprocket
- Bottom bracket
- Steel, Ball type
- Pedals
- GT Med Platform
Wheels
- Rims
- Alloy, 28 Hole
- Tires
- GT Wing Design, 20"x 1.75" Front, Rear
- Hubs
- Steel, 28 Hole, 3/8" Axle
Cockpit & contact
- Handlebar
- Full Hi-Ten, H:7", W:26.4", 11 Degree sweep, 3 Degree tip, 19mm O.D. cross bar
- Stem
- GT Top Load 1-1/8" aluminum, 40mm length, w/GT logo
- Grips
- GT Junior Wing
- Headset
- 1-1/8" threadless, Steel
- Saddle
- GT BMX padded race design, 7mm rails
- Seat post
- Steel, 25.4 x 250mm
- Seatpost clamp
- Alloy, single bolt
- Colour
- Aqua
Brakes
- Brake levers
- Alloy V-type





