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;HollowTech II allows the bottom bracket bearings to be spaced wider apart (outboard from the frame);The system allows for easier installation, adjustment, and maintenance

• Shimano A070 Chain Set - Black, 50/34 Teeth
• 50/34 Teeth
• Black

Shimano A070 Chain Set - Black, 50/34 TeethShimano