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GT Slammer 20"TT BMX Bike-POW - 1
GT Slammer 20"TT BMX Bike-POW - 2
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GT Slammer 20"TT BMX Bike-POW

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About This Product: GT Slammer 20"TT BMX Bike-POW

A low-maintenance, technique driven bike for riders looking to improve their freestyle skills.


  • FRAME: GT FS Design, Hi-Ten Steel Tubes, DT Gusset, American BB, Seat Stay Mounted U-Brake, External 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: American Loose Ball Bearing
  • PEDALS: GT Low Profile FS Platform Design, PP Material, Boron Axle
  • COG SET: 9T Sealed 1pc. Driver
  • RIMS: Alloy Single Wall, 36h
  • TIRES: INNOVA 20 x 2.3"
  • FRONT HUB: Steel Body, Loose Ball 3/8" x 150mm Heat Treated Axle, 36h, 15mm Nut
  • SPOKES: Stainless Steel, 14g
  • BRAKES: SST ORYG Detangler, Aluminum U-Brake w/ Soft Compound Pad
  • HANDLEBAR: GT Freestyle 2pc., Steel, 8.375"H x 28"W, 3°Up, 11° Back
  • STEM: GT Top Load, 1-1/8", Cold Forged Cap, 32mm Rise, 40mm
  • GRIPS: GT Super Soft 155mm Single Compound w/ GT removable plug
  • HEADSET: 1-1/8" Threadless, Steel
  • SADDLE: Railed
  • SEAT POST: Alloy, 25.4mm x 200mm
GT BMX Race Bike Geometry


  • A. Seat Tube Length: 9.4
  • C. Top Tube Actual: 20.0
  • D. Head Tube Angle: 75.0°
  • E. Seat Tube Angle: 71.0°
  • G. Head Tube Length: 4.0
  • H. Wheelbase: 34.9
  • I. Front Center: 21.9
  • J. Chain Stay Length: 13.2
  • K. BB Drop: -1.8
  • L. BB Height: 12.0
  • 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.