The newly designed cranks offer an optimised balance between light weight and efficiency.

The crank, formed with hollow aluminium technology, is anodised with a beautiful gloss black anodised finish, giving it a luxurious look. The resin reinforcements on the rear of the chainrings are a unique SHIMANO 105 structural design that achieves both weight reduction and excellent shifting performance.

• Optimal balance of stiffness, strength, weight and rotational performance.
• HOLLOWTECH II structure reduces weight but maintains strength for better power transfer.
• Crank length: 160, 165, 170, 172.5, 175 mm
• Gear combination: 50-34D, 52-36D
• Q-factor: 148 mm