
- Lightweight HollowTech II 105 10-speed chainset
- 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 the CN-5701 chains for increased contact to provide greater efficiency and improved power transfer
- HollowTech II allows the bottom bracket bearings to be spaced wider apart (outboard from the frame), enabling the use of larger bearings and an increased axle diameter
- The system allows for easier installation, adjustment, and maintenance
- Lightweight anodised SG-X aluminium chainrings for smooth and precise shifting
- For use with ST-5700, ST-6700 or ST-7900
- Free Delivery Anywhere in Ireland from €35
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