Foundation Shimano Cartridge BB Wrench

Like most parts on a bicycle, bottom brackets wear out, eventually. Most bottom brackets require a special tool for removal, depending on the type. The Foundation Shimano cartridge bottom bracket tool is designed to work with Shimano and ISIS Drive splined 20-tooth bottom bracket cups. It features a long handle with a grip that provides ample leverage for easy bottom bracket removal. This tool also works with Race Face Cinch crank lock rings.