- New

Shimano Dura-Ace 12s Chainrings: designed for the Dura-Ace R9100 and R9200 groupsets, the Shimano Dura-Ace 50/34 crowns offer a perfect balance between lightness, rigidity and smooth shifting. The compact 50-34 combination is ideal for challenging climbs without sacrificing speed on flat terrain.
Shimano Dura-Ace 12s Chainrings: made of high quality forged aluminium, these crowns guarantee efficient power transmission and superior durability. The Hollowglide technology ensures fast and quiet changes even under load, for a ride always responsive and precise.