5/8" ID x 1/2" Wide. It has 1.37 x 24 OD CW - right hand threads with the 3 Prong grove to drive a 16, 18, 20 or 22 tooth solid three prong sprocket and single speed freewheel.
It can also be used with a 5, 6, 7 or 8 speed freewheel or a threaded track cog sprocket with 1.37 x 24 CW - Right Hand threads.
It's a 1/2" wide, no set screw.
Requires one 3/16" x 3/16" x 1/2" key not included. Held in place by snap rings or shaft collars.
CNC Machined adaptor for freewheel sprockets, 12L14 steel and zinc plated.
Used to drive the 20 tooth 3 prong solid sprocket and it also drive a freewheel sprocket, dual drive for the GIANT STILETTO kit and other uses.
Click Here to add one or more 3/16 x 3/16 x 1/2 Keys.
To find all the types & sizes of adapters - adapter - adaptor - Track Cogs - Lock Rings - Track Cog & Three Prong Sprockets:
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