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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
- FRAME MATERIAL: Full 4130 Chromoly
- WHEEL SIZE: 20"
- TOP TUBE LENGTH: 21"
- CHAIN STAY LENGTH: TBC
- HEADTUBE ANGLE: TBC
- SEAT TUBE ANGLE: TBC
- FORKS:
- BARS: 9” x 29” 2pc Chromoly
- STEM: Trebol Top Load
- HEADSET: Sealed Integrated
- BRAKE MOUNTS: Removable
- BRAKES: Fly Springhanger U-Brake
- FRONT HUB: Trebol Bueno Sealed
- FRONT RIM: Fly Trebol Double Wall
- REAR HUB: Trebol Sealed Cassette 9t
- REAR RIM: Fly Trebol Double Wall
- TYRES: Trebol 2.35"
- SPROCKET: Trebol 25t Aluminum
- CRANKS: Trebol 3pc 4130 Chromoly 175mm
- BB: Sealed Mid
- PEDALS: Ruben Graphite
- SEAT: Fly Proton Tripod
- GEARING: 25/9
- WEIGHT: 24.6lbs / 11.2Kgs