Fly Proton CST BMX Bike supplier_31262288150639 FRONT HUB: Sealed

FRONT HUB: Sealed

FORKS: SALTPLUS "CRYSIS" fork

It boasts a unique downward sloping top tub edesign creating a lower standover height for shorter riders

The Profile Mini Splined Titanium Driver is a replacement driver designed for Profile Mini cassette hubs only

and 28-hole 20 and 24 x 1 1/8-inch sizes

Fly Proton CST BMX Bike supplier_31262288150639 FRONT HUB: SealedWhat set the Proton apart from the Neutron are a 100% CrMo frame, fork and bars, including Fly's fork with integrated cone shape design. One improvement that will make many people happy are the aftermarket Fuego tyres and nylon hub guards that are included this year. ###section### Product Specs FRAME MATERIAL: FULL 4130 CRMO WHEEL SIZE: 20" TOP TUBE LENGTH: 21" CHAIN STAY LENGTH: 13. 2" HEADTUBE ANGLE: 75 SEAT TUBE ANGLE: 71 FORKS: INTEGRATED CONE