13T lockring for use with Absolute Black`s 40T replacement cog Required when removing the 11T cog from a SLX cassette Works best with Absolute Black`s 40T cog, may not fit correctly with other brands 13T 13T Black
Genuine Campagnolo 11t 11sp Black
Hardened threading Extra material for increased durability 1.29` x 24tpi LH Silver
Chrome 1.29` x 24tpi LH Silver
Fits Shimano, Sram and Sunrace cassettes 12t 8/9sp Silver