Fly Proton Complete
The 2015 Fly Proton Bike is for the all around rider with measurements for taller riders or simply for riders that like bigger, more stable bikes. Frame, bars and fork are constructed of 100% 4130 CrMo.
The Proton features Trebol rims, Trebol sealed front and rear hub, Trebol Tripod post constructed of 6061-T6 Aluminum, Trebol top load stem, Trebol 25t 4130 CrMo sprocket, Trebol ICS 4130 CrMo cranks with sealed Spanish BB, removable brake mounts, manual Springhanger brake and manual lever. It also features the Flybikes Medio seat, Flybikes Ruben 2.35 tires, Devon grips and Ruben graphite pedals.