This special Muc-Off Two Prong brush has nylon resistant bristles harder than usual and is recommended for cleaning spokes, discs, shocks, cranks, linkages and pedals. Double heads can even be changed and repositioned to reach even the narrowest areas. Its shape with two heads and its handle make our job even easier, while Muc-Off of course recommends using it in combination with its Nano-Tech biodegradable cleaning fluid