Description The Park Tool Freewheel Remover – Shimano FR-1.3 is the way to get your cassette off your bike – a critical tool! The FR-1.3 Freewheel Remover is designed for the removal of most freewheels with a 12-spline tool fitting. Including Shimano & SunRace. The FR-1.3 is designed to fit the most common tool fitting found on 5-to-10 speed bicycle freewheel systems, including many models made by Shimano®, Sachs Aris®, SunRace®, Dimension®, and DNP Epoch™. Features an enlarged thru-hole to accommodate 14 mm solid axles. The 1″ hexagonal base can be used in conjunction with a 1″ socket or adjustable wrench. Heat-treated alloy tool steel construction for a lifetime of use. FR-1.3 Features Fits 12-spline tool fittings with an approximate outer diameter of 22.6 mm Center bore for axle clearance is 15 mm 1″ hexagonal base can be used with 1″ socket or wrench NOTE: For Falcon® freewheels, use the FR-7. Tool face is 23 mm