7/8" ID x 1/2" wide, 3/16" keyway, Freewheel Sprocket Adaptor.
CNC machined out of 12L14 steel and zinc plated for a single, dual or multi speed freewheel sprocket.
7/8" ID x 1.37 x 24 OD CW - right hand threads.
1/2" wide with a 3/16" key way, no set screw.
Click Here to add one or more 3/16" x 3/16" x 1/2" Keys.
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