Description:
OneUp Shark 10 Tooth Cluster OneUp Components has one-upped themselves again with the Shark 10T Sprocket Cluster which is one part of the widest modular 11-speed 1X system ever created. By increasing a stock Shimano 11-speed cassette's range by 10%, ...

Description:
Oneup Components Shimano 47T Expander Do you find yourself in the midst of a killer steep climb, and you're pushing on the thumb paddle of your rear shifter searching for one more gear only to find that you've already maxed ...

Description:
OneUp Cassette Expander 44T Cog Kit Extend the life and range of your 10-42T cassette by replacing the aluminium 42T with the X-cog 44T sprocket. If you spend a lot of time in the 42T Cog it can wear out ...