Fly Proton Freecoaster BMX Bike 21" TT Gloss Trans Dark Blue RGroup_3315787F82E5AEF034924E06156445CEC7476388 ventilated materials

ventilated materials

Designed to redefine performance

The Smart Block also corrects the unnatural position often caused by indoor training

and tubular cranks

provides excellent control during hard braking

Fly Proton Freecoaster BMX Bike 21" TT Gloss Trans Dark Blue RGroup_3315787F82E5AEF034924E06156445CEC7476388 ventilated materialsThe 2019 Proton BMX Bike by Fly features a lightweight and durable Full CrMo frame. The fork has been upgraded to a hydroformed 1 piece steerer tube for enhanced durability and reliability. Additional upgrades include a new Trebol headset, Trebol cranks, a durable 510 chain, a taller standover height, and larger bars, all designed to improve handling, feel, and appearance.