Profile 39t Spline Drive BMX Sprocket - 19mm - 48-spline - Blood Red - USA Made 2.25/2.50-18 Manufacturer Spec ERD (mm): 564

Manufacturer Spec ERD (mm): 564

Releases in lateral twist mode

indoor cyclists

Directional fiber orientation delivers stiff and responsive performance

It also uses the most advanced drilling pattern of any bicycle rim on the market today

Profile 39t Spline Drive BMX Sprocket - 19mm - 48-spline - Blood Red - USA Made 2.25/2.50-18 Manufacturer Spec ERD (mm): 564The Profile Spline drive sprocket is CNC machined from 7075 Aluminum in the USA. This sprocket does not require a sprocket bolt; instead, it has a hardened CrMo steel insert that matches up to the 48 splines on the crank axle for pure, direct power transfer. This has 1 8 tooth width for use with most freestyle street & single speed chains. It will only work with 19mm, 48 spline 3 piece cranks. Size: 39t Color: Blood Red (this is a dark red color) This