Park Tool Freewheel Remover FR-4 Price Group:Price_S oil and road grime when

oil and road grime when you're tuning up your bike* We are too

3 is designed to fit the most common tool fitting found on 5-to-10 speed bicycle freewheel systems

and a 20mm apex reduces the chance of pinch flats or burping

which has a bumper around the dial to prevent accidental adjustments if your helmet contacts your backpack or neck brace-all while keeping you cool

Park Tool Freewheel Remover FR-4 Price Group:Price_S oil and road grime whenThe 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. FR 4 Features Fits 20 spline tool fittings with an approximate outer diameter of 21. 6 mm Fits Atom, Regina, splined Zeus, and some Schwinn approved freewheels 1" hexagonal base can be used with 1" socket or wrench