Forged double-ended spoke wrench designed to fit select MavicA(R) wheels using integrated M7 nipples Precision machined, plated and vinyl dipped for comfort and long life Smaller end fits 7-spline nipples with a 6.4mm outside spline diameter. Commonly found on R-sys wheels Larger end fits 6-spline 9mm FORE drilled rim adapters. Commonly found on rims such as MavicA(R) XM819, EX823 and Speedcity wheels. Equal to the sizing of the MavicA(R) 108 471 01 wrench