Description
The Shimano Dura-Ace FC-R9100 inner chainring is engineered for elite-level power transfer and shifting precision. Its reinforced construction works in tandem with Shimano’s unique asymmetrical four-arm spider to maximize stiffness while minimizing weight. This 11-speed component is the benchmark for professional road racing performance.
Crafted from high-grade aluminum, the inner ring features optimized tooth profiles for smooth, reliable chain transitions under high torque. It uses the 110mm asymmetrical BCD specific to Shimano’s top-tier cranksets. This replacement ring ensures your drivetrain maintains the crisp, factory-standard shifting quality Dura-Ace is known for.
Quick Facts
| Feature | Specification |
|---|---|
| Series | Dura-Ace R9100 |
| Speeds | 11-Speed |
| BCD | 110mm (Asymmetric 4-Arm) |
| Material | Aluminum |
| Position | Inner |
| Compatibility | Shimano FC-R9100 / R8000 / R7000 |
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