Essential tool for single speed riders. Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts.
The FR-4 is designed to fit the 20-spline tool fittings found on older SunTour® freewheels. Constructed from heat treated alloy tool steel, the FR-4 features a 1" tool fitting for use with an adjustable wrench, socket, or bench vise.
Updated to fit current 12-speed cassettes, this combination chain whip and freewheel / lockring remover wrench is heat treated to prevent bending, flexing and wear and features a long, molded handle in addition to a built in hex shaped driver.