Fenwicks gear cleaning brushthis is a unique brush designed to complement fenwicks drivetrain cleaning products it is ergonomically shaped with a long reach handle to allow easy and full access to the cassette and chainrings the bristles are designed to be stiff yet yielding to allow it to clean properly between teeth and sprockets it features dual stiffness bristles soft red bristles for better cleaning around rear mechs jockey wheels and the polished areas around the chainset and stiffer