Fly Proton Freecoaster BMX Bike 2019

Check all Stock availability
Regular price £529.99 £450.49 In Stock
Add to Wishlist
Order In for dispatch today!
  • 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!

  • Seen this cheaper elsewhere? We price match any legitimate competitor!

    Create price match request

    • Free Shipping On all Orders Over £80
    • Complete Tracking on all orders
    • 90 Day Returns Policy
    • Free Gifts With All orders

90 Day Returns

UK's #1 BMX Shop

100% Secure Shopping

Trustpilot Rate Us Excellent!

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: Full Chromo 8.75" x 28"
  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: Trebol, Alloy Double Wall
  15. REAR HUB: Trebol bueno FC Hub, 14mm 9t Driver
  16. REAR RIM: Trebol, Alloy 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: 24.9lbs / 11.3Kgs

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
  • Great for gringing, pegs included
  • Allows for more fakie tricks thanks to the Freecoaster rear hub
  • Sealed bearings throughout

BMX BIKE SIZE GUIDE

BMX bikes are measured in two ways, the size of the wheel (20” is the standard BMX Wheel size) and the length of the frame which is gauged by the top tube measurement.

Below is a guide to what size you should be looking for. note there is some overlap in sizes as personal preference also comes into the equation. 

BMX Bike Size Chart

< IMPERIAL (FEET & INCHES) --- METRIC (CM) >

NEED SOME HELP CHOOSING A BMX BIKE?

we have compiled a complete bmx buyers guide to help you through the process!
Here at sourcebmx we are all riders so we can offer advice that only 100% rider-owned bmx shops can - just ask

BIKE ASSEMBLY SERVICE

LET US BUILD YOUR BIKE FOR YOU SO YOU DON'T HAVE TO

We can build 99% of your bike for you before we ship it to to take the hassle out of buying online. All that is left to do when your bike arrives is to put the bars and pedals on - we even give you the tools. 

Just add this service to your order at checkout when prompted. £19.99 per bike or free for bikes over £299.99

SPREAD THE COST OF YOUR BIKE WITH OUR SIMPLE FINANCE SOLUTIONS