. When converting your triple or double crank to a double or single ring setup these shims mean that you can still use your original bolts. It also keeps the end of your spider looking clean too!
Features: Cleanly converts your triple or double chainring setup into a double or single Required for all carbon cranks when not using a bash guard or outer ring Sold in a pack of 4 Fits most 104 BCD cranks available from many manufacturers Alloy material Buy Race Face Chainring Tab Shims from Chain Reaction Cycles, the World's Largest Online Bike Store.