Features:

• Lightweight HollowTech II cranksets.
• Innovative HollowTech forged and anodized aluminium crank arms utilize a hollow design that minimizes flex and keeps the weight low
• The chainring teeth have been developed to work in conjunction for increased contact to provide greater efficiency and improved power transfer
• The bottom bracket bearings can be spaced wider apart, enabling the use of larger bearings and an increased axle diameter
• Can be used with Shimano external or press-fit bottom brackets
• The system allows for easier installation, adjustment, and maintenance
• Lightweight anodized SG-X aluminium chainrings for smooth and precise shifting