Fly Proton Bike (2018) / 21TT Freecoaster RHD Flat Black


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Fly Bikes' best selling mid price range model just got a little better. The 2018 Fly Bikes Proton BMX includes the new, large Trebol 2.35” tires, new Proton Tripod seat with original artwork, Devon signature grips, a shorter 30mm fork offset and a full set of the Trebol pegs. And to finish things up this sweet street inspired ride comes stock with either a freecoaster or cassette hub, whichever suites your needs. Either way, you’ll be ready to shred the streets on one of two amazing color options for 2018: Flat Black and Gloss Trans Orange.


  • Frame: Full 4130 CrMo / Removable Brake mounts
  • Fork: Full 4130 CrMo / 32mm. Offset
  • Bars: Full 4130 CrMo
  • Grips: Flybikes Devon
  • Stem: Trebol Top Load
  • Headset: Internal Sealed Bearing
  • Lever: Flybikes Manual
  • Brake: Flybikes Manual Springhanger
  • Cranks: Trebol 3 / 3Pc CrMo / 175 mm.
  • BB: Mid / Sealed Bearing
  • Sprocket: Trebol / Alloy / 25t
  • Pedals: Ruben Graphite
  • Chain: 410 Type
  • Rims: Trebol / Double side walled
  • Front Hub: Trebol Bueno / Sealed Bearing / 3/8” Axle Female
  • Rear Hub: Trebol / Sealed Bearing / 14mm. Axle / 9t
  • Tires: Trebol 2.35 Front & Rear
  • Seat: Flybikes Proton / Trebol Tripod
  • Pegs: Trebol HS Steel / 1 pair
  • Weight: 11.2 kg / 24.6 lb
SKU FlyProton2018
Barcode # FlyProton2018
Brand Fly Bikes
Shipping Weight 14.0000kg

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