Sugino NJS stepped lockring
NJS stamped track lockring made of hardened steel w/ black phosphate finish.
This version features a 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.
• made in Japan
• standard 1.29"x24 tpi left-hand threads