Thread: Which track sprockets (cogs) have ISO, and which have english threading?
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Old 08-13-09 | 07:15 AM
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JohnDThompson
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Bikes: Several, mostly not name brands.

I suspect the OP may mean lockring threading rather than cog threading. Campy and Miche use 1.32" x 24 TPI left hand thread; ISO lockrings are 1.29" x 24TPI left hand thread.
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