Park Tool Freewheel Remover — SunTour Four-Notch

The FR-3 is designed to fit the four-notch tool fittings found on SunTour® freewheels made since 1986. Constructed from heat-treated alloy tool steel, the FR-3 features a 1" tool fitting for use with an adjustable wrench, socket, or bench vise.
Fits 4-notch tool fittings with an approximate outer diameter of 24 mm
Fits all Suntour® four-notch freewheels since 1986
Center bore for axle clearance is 10 mm
1" hexagonal base can be used with 1" socket or wrench
NOTE: The Suntour® two notch freewheels do not accept the FR-3 remover. Use the FR-2 for the Suntour® freewheels with two notches