Fly Proton Cassette BMX Bike 2019

Regular price $654.95   $545.79 Out of Stock
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  • The Proton has been refined for 2019 just like the rest of the Fly mid-range bike line, The fork has been upgraded to a hydroformed 1-piece steerer tube. This bike now comes with a Trebol headset, a stronger 510 chain, bigger bars and a taller standover height, improving the overall look and feel, The cranks have been upgraded to the clean Trebol Bueno cranks. The 2019 Proton now comes equipped with four pegs, a shorter 13" rear end and shorter 28mm offset forks that is geared more toward the street riders out there!

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Product Specs
  1. FRAME MATERIAL: Full 4130 Chromoly
  2. WHEEL SIZE: 20"
  3. TOP TUBE LENGTH: 21"
  4. CHAIN STAY LENGTH: TBC
  5. HEADTUBE ANGLE
  6. SEAT TUBE ANGLE
  7. FORKS: Full Chromoly, Tapered Legs, 10mm
  8. BARS: 9” x 29” 2pc Chromoly
  9. STEM: Trebol Top Load
  10. HEADSET: Sealed Integrated
  11. BRAKE MOUNTS: Removable
  12. BRAKES: Fly Springhanger U-Brake
  13. FRONT HUB: Trebol Bueno Sealed
  14. FRONT RIM: Fly Trebol Double Wall
  15. REAR HUB: Trebol Sealed Cassette 9t
  16. REAR RIM: Fly Trebol Double Wall
  17. TYRES: Trebol 2.35"
  18. SPROCKET: Trebol 25t Aluminum
  19. CRANKS: Trebol 3pc 4130 Chromoly 175mm
  20. BB: Sealed Mid
  21. PEDALS: Ruben Graphite
  22. SEAT: Fly Proton Tripod
  23. GEARING: 25/9
  24. WEIGHT: 24.6lbs / 11.2Kgs

Product Highlights
  • Longer top tube is great for taller riders who need a bit more room (6ft / 180cm plus)
  • Designed to excel at Street riding thanks to responsive geometry but will feel at home in any riding environment
  • Full 4130 Chromoly frame
  • Sealed bearings throughout
  • 3 pc Chromoly cranks