EAI stainless steel stepped lockring
Burly track lockring machined from stainless steel and polished to a mirror finish.
5.5mm thick with a stepped design that prevents the chain from hitting the lockring when using a 12t cog.
Of course, you can use this lockring with other size cogs too.
• six notches for use with any common lockring tool
• 1.29"x24 tpi left-hand English threads