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! ###section### Product Specs FRAME MATERIAL: Full 4130 Chromoly WHEEL SIZE: 20\" TOP TUBE LENGTH: 21\" CHAIN STAY LENGTH: TBC HEADTUBE ANGLE: SEAT TUBE ANGLE: FORKS: Full Chromoly, Tapered Legs, 10mm BARS: Full Chromo 8.75\" x 28\" STEM: Trebol Top Load HEADSET: Sealed Integrated BRAKE MOUNTS: Removable BRAKES: Fly Springhanger U-Brake FRONT HUB: Trebol Bueno Sealed FRONT RIM: Trebol, Alloy Double Wall REAR HUB: Trebol bueno FC Hub, 14mm 9t Driver REAR RIM: Trebol, Alloy 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: 24.9lbs / 11.3Kgs ###section### 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 ###shogun-image-section###