The SHIMANO ULTEGRA R8000 series crank features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames. I

• Lightweight crankarm design optimized for power-transfer efficiency
• Minimal weight without sacrificing stiffness
• HOLLOWTECH II
• Rider-tuned gear performance through various gear combinations
• Redesigned FC for greater frame compatibility
• Wider gear pitch increases clearance between chain and leading teeth, providing
• compatibility with frames of O.L.D. 135 mm and 410 mm chainstay length