The GT Mach One Junior BMX Race Bike offers an affordable gateway into the exhilarating world of BMX racing without breaking the bank. Designed for riders between 3’10”-4’5″ tall, this bike ensures a comfortable and tailored fit for aspiring racers. Crafted with inspiration from the Speed Series alloy frame, featuring reverse dropouts, and enhanced with a GT Top Load Stem and GT Alloy Forged 3pc crankset with a 130 BCD Spider, this bike guarantees durability and smooth performance on the track. Its upgradeable aluminum race frame, provides the flexibility for riders to take their BMX racing game from amateur to pro, making it an ideal choice for riders looking to hone their skills and progress in the sport.

NOTE: As with any complete bike, J&R Bicycles recommends that you have a professional bicycle store build your bike. Bikes ordered through mail-order come partially assembled and need to be inspected and assembled by a bicycle mechanic. Failure to do so may void the manufacturer’s warranty. Manufacturer’s warranties differ for every brand. You can check the brand’s website for warranty information.

SPECIFICATIONS

• COLOR: Yellow
• FRAME: GT Mach One Race MK2, 6061 Alloy, Euro BB, Reverse Dropouts, V-Brakes, 1-1/8″ Integrated H/T
• HEADSET: 1-1/8″ Sealed Integrated (41.8 x 45)
• BB: Euro BB, Threaded Square Type
• BARS: GT Race, Steel, 4″H x 24″w/ 8 Back, 2 Up, 19mm O.D. Cross Bar
• FORK: GT BMX Race, Hi-Ten Steel 1 1/8″ Steerer, 312mm A/C, 3/8″ Dropouts
• STEM: GT Top Load, 40mm
• GRIPS: GT Statement
• SEAT: GT Uni Mini Padded
• SEAT POST: Combo Alloy 22.2 Integrated
• CRANK: GT Alloy Forged 3pc, 152mm, Square Taper
• CHAINRING: 130 BCD 40T Steel Chainring
• PEDALS: GT Mini Size Platform, PP Material
• FRONT WHEEL: Alloy Double Wall Rim-28H, Steel Body Hub-28-3/8 axle
• REAR WHEEL: Alloy Double Wall Rim-28H, Flip-Flop Thread-On Steel Hub body
• TIRES: Kenda Race, 20 x 1-3/8″
• BRAKES: Alloy V-type
• WEIGHT: TBD