15mm ID with 30mm x 1.0 right hand threads.
This adaptor is for 13, 14 & 15 tooth freewheel Sprockets with the 30mm x 1.0 thread pitch.
1/2" wide has a 5mm key way the flange is .084" wide.
The 5mm key is NOT included.
Note: 15mm OD shafts can have a 4mm or 5mm key way, so be sure and order the correct part.
CNC machined in OKLAHOMA. Made out of 12L14 Steel, Zinc Plated.
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