- 30T rings have integrated shims and chainring bolt threads to allow the smallest ring size possible on a 104 BCD crank (loose shims are only included with the 32T-36T sizes).
*Shims - Included with 32T and 34T rings. For 2x crank conversions, shims between the crank and ring get you back to an ideal 49-50mm chainline. For 3x crank conversions, shims under the bolt heads allow reuse of your 3x hardware - No new bolt packs required!
Material: 7075-T6
Weight: 40g (30T), 44g (32T), 54g (34T), 2g (4x shims)
Compatible with: 9, 10, 11 and 12 Speed SRAM Chains and 104 BCD cranks (not compatible with 12 Speed Shimano/Hyperglide Chains)
Installation: Align the small bump (small hole on direct mount rings) on the inner edge of the ring with your crank arm
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