Race Face Chainring Shims 4 Pack Parts Mountain Cranksets

Race Face Chainring Shims 4 Pack. The Race Face Chainring Shims are designed to make it easier to convert a double chainring crankset into a single chainring set up. This set of four shims take the place of the outer chainring or a bash guard so you can continue to use the same double chainring bolts that are on your crankset instead of having to also purchase a separate set of shorter, single chainring specific bolts.