Introducing the new ULTRA-LITE cassette lockrings
 
Fits most all Shimano and Sram compatible freehubs and cassettes starting with 12/13T
Fitted with standard Shimano lockring tool 
Precisely CNC machined from aerospace 7075 aluminum alloy. 
Beautiful Anodized finish color: Prevents corrosion
The outside diameter of the threaded portion is 30.5 mm. Same as current 9, 10, 11, 12 speed. 
Has a 38.0 mm flange for cassettes that start with a 12/13 tooth or larger cog. 
Also fits other manufacturer hubs designed for Shimano/Sram cassettes.
Weight: 6.1 grams Verified