Park Tool Freewheel Remover - Suntour 4 Notch (FR-3) BSS-002722 Compatible Models: BR-M8020

Compatible Models: BR-M8020

Material:  Carbon fiber injected

Gamma tread design optimized for pedal pins

IP-65: Ingress protection rating or 'IP rating'

And finally

Park Tool Freewheel Remover - Suntour 4 Notch (FR-3) BSS-002722 Compatible Models: BR-M8020About Park Tool Freewheel Remover Suntour 4 Notch (FR 3) 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. Features 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