Shimano Dura-Ace FC-R9200 12-Speed Aluminum Chainrings Bundle - 36t & 52t, Asymmetric 110 BCD, Lightweight High-Performance Cycling Components Bolt Size (mm)_4 mm Designed for professional bike shop

Designed for professional bike shop use

Its machined brake track provides superior braking consistency in all weather conditions

or long-distance endurance cyclists

Designed for smooth and responsive gameplay

Shimano Dura-Ace FC-R9200 12-Speed Aluminum Chainrings Bundle - 36t & 52t, Asymmetric 110 BCD, Lightweight High-Performance Cycling Components Bolt Size (mm)_4 mm Designed for professional bike shopUltimate Shimano Dura Ace FC R9200 12 Speed Chainring Bundle 36t Inner and 52t Outer, Asymmetric 110 BCD, Black Elevate your road cycling performance with this premium Shimano Dura Ace FC R9200 12 Speed Chainring Bundle, designed for serious cyclists seeking precision, durability, and optimal power transfer. Crafted from high quality anodized aluminum, these lightweight, stiff chainrings feature innovative Hollowglide technology to deliver enhanced