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GT Mach One Pro Bike-Blue

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About This Product: GT Mach One Pro Bike-Blue

Designed to be the perfect introduction into the world of racing, the 2019 GT Mach One is available in a variety of sizes, built to suit every need.


  • TOP TUBE: 20.6"
  • CHAINSTAY: 14.4"
  • FRAME: GT Mach One Race, 6061-T6 AL, Euro BB, Reverse Dropouts, 1-1/8" Integrated H/T
  • FORK: GT BMX design, 1-1/8" Steerer x 31.8mm blades, Hi-Ten Blades
  • CHAIN: KMC Z410
  • CRANK: GT Power Series Tubular Cr-Mo 3-Piece, 175mm Arms, 19mm x 8T Splined Spindle, GT 38T Steel Sprocket
  • BOTTOM BRACKET: External Euro Sealed Bearings
  • PEDALS: GT Low Profile FS Platform Design, PP Material, Boron Axle
  • RIMS: Alloy single wall, 20" 36h
  • TIRES: GT Wing, 20 x 1.75"
  • HUBS: Steel Body, 3/8" Axle front, Steel Body, Freewheel, 3/8" Axle rear
  • WHEELS SPOKES: Stainless Steel, 14g
  • BRAKES: Rear Alloy V-type
  • HANDLEBAR: GT Race, Steel, 8.25"H x 29"W, 11° sweep, 3° Up, 19mm O.D. Cross Bar
  • STEM: GT Top Load 1-1/8" Aluminum, 50mm Length
  • GRIPS: GT Statement
  • HEADSET: 1-1/8" Integrated Design, 45X45 Degree Sealed Bearings
  • SADDLE: GT Uni Pro padded
  • SEAT POST: AL Integrated w/ Saddle, 27.2 x 250mm

Complete Bike specifications and components may differ from photos and description. Manufacturers reserve the right to make changes and/or substitutions due to parts availability, production requirements and ongoing development decisions.

Need Some help Choosing a BMX Bike?

Selecting the right size BMX bike is vital for a smooth and delightful ride. At J&R Bicycles, we understand the BMX world inside out because we're passionate riders ourselves. Just reach out to us, and we'll be more than happy to assist you on your journey to finding the perfect BMX bike.

Curious to learn more? We've compiled a comprehensive BMX buyer's guide to demystify the process. Read on, and together, we'll uncover the BMX bike that perfectly matches your riding style and preferences.