Shimano Dura-Ace CS-R9100 Cassette Lockring (Black)

gears, the Box Two Prime 9 Groupset takes a different approach. The engineers at Box decided that sometimes simple is better so they developed a groupset with a wide ratio range over ...

fitting 10 speed cassettes onto Shimano/SRAM 11 Speed Freehub bodies.

Shimano/SRAM cassettes up to 11 speeds. These cassette lockrings hold your cassette securely while adding a pop of color to your bike.

12-speed R8101 cassettes.

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