Campagnolo 10Spd Lock Rings for 12T Cassette
Cassette lockring for Campagnolo 10 speed freehubs, suitable for 12 tooth cassettes
Made from steel with a 27mm O.D.
If you purchase any ratio cassette, they supply no lockring. This is because most Campagnolo rear hubs and prebuilt rear wheels should come supplied with a lockring that functions with a 12t or a 13t cassette, some select few wheelsets are not supplied with these though so you may need to purchase one of these lockrings. These lockrings are non-interchangeable, so the 11t lockring won't work with cassettes that start with a 12t or 13t cog.