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Light and strong, these S-Works carbon road arms, and spider give you the competitive advantage.
- Hollow carbon crankarms offer superior stiffness.
- Oversized alloy spindle with Hirth coupling interface.
- Fits Specialized road frames with OSBB or PF30 bottom bracket shell.
- BB30 compatible.
- Compatible with Shimano and SRAM drivetrains.
- Finish: Unidirectional carbon fiber
- Spider: 110 BCD
- Spider: 110BCD