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.
Quick Facts
| Feature |
Specification |
| Compatibility |
Shimano 105 FC-R7100, 12-speed |
| BCD |
110mm |
| Bolt Count |
4-bolt |
| Ring Position |
Inner and outer chainring options |