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GT Performer 21"TT Bike-Yellow - 1
GT Performer 21"TT Bike-Yellow - 2
GT Performer 21"TT Bike-Yellow - 3

GT Performer 21"TT Bike-Yellow

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About This Product: GT Performer 21"TT Bike-Yellow

The perfect long-lasting bike you need to learn all the tricks in the book and then some.


  • FRAME: GT FS Design, Hi-Ten Steel Tubes, DT Gusset, MID BB , Seat Stay Mounted U-Brake, Integrated 1-1/8" H/T w/ Removable Rotor Tabs, Odyssey Springfield Brake compatible
  • FORK: GT FS Design, Hi-Ten 2pc. Steerer & Tapered Legs, 31mm Offset, 3/8" Axle Dropouts
  • CRANK: GT Power Series Cr-Mo 3pc., 170mm Arms, 19mm x 8T Cr-Mo Spindle, GT 25T Steel Chainwheel
  • BOTTOM BRACKET: MID Sealed Bearing
  • PEDALS: GT Low Profile FS Platform Design, PP Material, Boron Axle
  • COG SET: 9T Sealed 1pc. Driver /16T Freewheel
  • RIMS: Alloy Single Wall, 36h
  • TIRES: GT LP-5 20 x 2.35"
  • FRONT HUB: Alloy Body, Sealed Bearings 3/8" Axle, 36h, 15mm Nut
  • SPOKES: Stainless Steel, 14g
  • BRAKES: Aluminum U-Brake w/ Soft Compound Pad
  • HANDLEBAR: GT Freestyle 2pc., Steel, 8.5"H x 29"W, 3°Up, 11° Back
  • STEM: GT Top Load, 1-1/8", Cold Forged Cap, 32mm Rise, 50mm
  • GRIPS: GT Super Soft 155mm Single Compound w/o Flange w/ GT removable plug
  • HEADSET: 1 1/8" Integrated Design, 45X45 Degree Sealed Bearings
  • SADDLE: GT Pivotal Padded
  • SEAT POST: Alloy Pivotal 25.4 x 200mm
GT Performer BMX Bike Geometry


  • A. Seat Tube Length: 9.6
  • C. Top Tube Actual: 21
  • D. Head Tube Angle: 75.0°
  • E. Seat Tube Angle: 71.0°
  • G. Head Tube Length: 4.5
  • H. Wheelbase: 35.4
  • I. Front Center: 22.4
  • J. Chain Stay Length: 13.2
  • K. BB Drop: -1.8
  • L. BB Height: 12
  • M. Fork Rake: 1.2

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.