SHIMANO debuts in the wireless gravel segment with new specific 12-speed GRX Di2 components. Leveraging the wireless cockpit introduced with its 12-speed road and gravel groups and incorporating the fully wireless technology from the XTR M9200 series derailleur, GRX RX827 presents a completely wireless transmission designed for performance, durability, and versatility. With RX827, the GRX series now includes a complete range of mechanical and electronic shifting options in both 1x12 and 2x12 speed configurations, allowing cyclists to customize their transmissions for their unique gravel riding needs.