Shimano 105 FC-5703 HollowTech II Chainset

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 triple chainring teeth have been developed to work in conjunction with the CN-5600 chains for improved up and down shifting
• 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-5703 or ST-6700