The new SHIMANO ULTEGRA R8000 cranks incorporate lightweight crank arms, a hollow outer chainring, and a wider shifter pitch for greater clearance on modern road frames. It is offered with 53-39, 52-36, 50-34, and 46-36D chainrings and 165, 170, 172.5, and 175mm crank arm lengths.

Features

• Lightweight crank arm design optimized for efficient power transfer
• Minimum weight without sacrificing durability
• HOLLOWTECH II
• Rider-tailored performance. thanks to different gear combinations
• Redesigned CF for greater frame compatibility
• Wider gear pitch increases the space between the chain and the guide sprockets allowing compatibility with O. L.D. FRAMES. 135mm and 410mm chainstay length