- New
The GRX Di2 RD-RX717 Di2 1 x 12-speed rear derailleur, with new SHIMANO SHADOW ES technology,
»Fully wireless shifting built for rough gravel terrain
»Robust Design: A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity.
»RD Protection Function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after impact.
»SHIMANO SHADOW ES: A slimmer, stronger evolution of SHIMANO's pioneering chain-stabilizing SHADOW RD+ concept.
»Protected Battery: Tucked safely inside an enclosed space, the battery won't budge even in rough terrain, while remaining easily removable for charging.