COMPATIBILITY: This tool is made to install and remove the freewheels with 12 splines, 22.6mm tool fittings including for Shimano, Sachs Aris, SunRace, DNP Epoch, and other 5 to 8 Speed freewheels. PLEASE DOUBLE-CHECK THE SIZE BEFORE MAKING A PURCHASE.
EASY TO USE: Use with a 21mm wrench/socket or 1/2" drive. The thin edge design makes the job easier by not removing the locknuts and cones beforehand.