Shimano FC-R7100 105 Double 12-Speed HollowTech II Chainset
Shimano's FC-R7100 105 Double 12-Speed HollowTech II Chainset is compatible with HollowTech II bottom brackets and offers superlative shifting thanks to Hyperglide+ technology. This also allows wider spacing of the bottom bracket bearings for increased longevity and more efficient power transfer due to the larger bearings and an increased axle diameter.
Weight is kept down without reducing stiffness by using hollow aluminium crank arms and the chainrings are anodised for durability and a smart aesthetic.
Features
Lightweight HollowTech II 105 12-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 Hyperglide+ 12-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 aluminium chainrings for smooth and precise shifting
110 BCD
148mm Q-factor
44.5mm chainline
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