Retrogression cro-mo track lockring

Retrogression Verified independent store

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CNC machined from hardened chromoly steel, our lockrings have a smooth black oxide coating and stepped design that prevents the chain from making unwanted contact with the lockring when using a 12t cog. Of course, you can use this lockring with other size cogs too. ⓘ Not compatible with Campagnolo, Miche, Phil Wood, Mack or Mavic hubs. Specifications • standard 1.29"x24 tpi left-hand threads • color: black Show more