Profile Race 3-Piece BMX Cranks - RHD - 165mm - Chrome - USA Made 42t It requires a 19mm bottom

It requires a 19mm bottom bracket (not included)

This BB is designed to be used with old school 1-piece cranks that have a 28 tpi and frames that have a classic American shell

It features a machined body and 2-pc cap for reduced weight

These grips are constructed utilizing a proprietary blend of materials to promote a firmer grip

Crank away for instant acceleration

Profile Race 3-Piece BMX Cranks - RHD - 165mm - Chrome - USA Made 42t It requires a 19mm bottomThe Profile Racing Race Crankset is constructed of 4130 chromoly and consists of 48 spline arms and a 5. 625" gun drilled hollow (GDH) 19mm CrMo spindle. The right hand crank arm has a sprocket boss. Flush washers, sprocket bolt, and a crank installation removal tool are also included. It requires a 19mm bottom bracket (not included). Drive Side: RightArm length: 165mm Color: Chrome