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and more grip than ever before
Lightweight road disc thru-axle rear derailleur hanger
and durability for elite performance
New 10-speed TIAGRA provides serious entry-level riding performance with cascaded technology from top-tier lines
Shimano Dura Ace Di2 ST-R9180 STI for Disc Brake Left CR-RED-KIT-D1 and more grip than everThe Dura Ace groupset is the result of Shimano's ongoing passion for technology. This is reflected in every single component in the groupset. All components are joined together to work as one, reinforcing each other for unparalleled performance. This is how Dura Aceachieves ultimate supremacy. Features Electronic Dura Ace Di2 Dual Control Levers 2x11 speed especially for time trial and triathlon bars. Switching operation can be initiated with the