Introducing the new ULTRA-LITE cassette lockrings
 
Fits most all Shimano and Sram compatible freehubs and cassettes starting with 11T
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 30.3 mm. Same as current 9, 10, 11, 12 speed. 
Has a 35.4 mm flange for cassettes that start with a 11 tooth or larger cog. 
Also fits other manufacturer hubs designed for Shimano/Sram cassettes.
Weight: 6.0 grams Verified