For sale is a One up Shark 11 speed 11-50 conversion kit with a Shimano XT 11 speed cassette. This setup is nearly new with under 10 miles on it. This kit extends the range of a Shimano 11 speed cassette to 11-50t! It also comes with a replacement derailleur cage for a Shimano 11 speed derailleur to allow it to handle the extra range. This setup works great and allows your 1x11 to have the same range as a 12 speed! Check out my other listings for Shimano 11 speed derailleurs/shifters that would work great with this cassette. $100 firm

Thanks for looking!