This lock ring weighs only 5 grams! Replace your existing bike cassette lock ring to easily add some Chris King® quality to your bike. Many standard cassettes come with heavy steel lock rings, and while they certainly work well, they're very heavy compared to this lock ring. This lock ring has a bright silver finish.
This particular lock ring is sized for use when your cassette's smallest cog is 12 tooth. It's slightly larger than the 11 tooth version.