Lightweight HollowTech II 105 11-speed chainset - an innovative HollowTech forged and anodised aluminium crank arms utilise a hollow design that minimises flex and keeps the weight low.
- The chainring teeth have been developed to work in conjunction with HG-X 11-speed chains for increased contact to provide greater efficiency and improved power transfer
- HollowTech II allows the bottom bracket bearings to 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 anodised SG-X aluminium chainrings for smooth and precise shifting