Shimano 105 FC-R7100 12spd Chainring

The Shimano 105 FC-R7100 Chainring is a replacement chainring for the 105 12-speed double crankset. Available in inner and outer ring options, it allows riders to replace worn chainrings or adjust gearing ratios on an existing FC-R7100 crankset without replacing the full crank assembly.

Each ring mounts using a 4-bolt pattern at 110mm BCD, matching the FC-R7100 crankset spider. These chainrings are specific to Shimano’s 12-speed 105 drivetrain. Inner and outer ring options are sold individually, allowing targeted replacement of a single ring rather than the full crankset.

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