Intended for riding on rough trails, through gravel and mud, so you can go comfortably and stress-free wherever you want to go and achieve the unique feeling of performance. The first component group designed by Shimano for gravel riding. Instead of telling gravel riders what they need, Shimano's developers asked them what they want. Shimano listened for two years and spent countless hours talking with gravel enthusiasts from around the world. They rode on dust and gravel roads and narrow tracks, crossed streams and mountain passes to get their own idea of what a Shimano Gravel group could look like. The result of all these rides and also new friendships? First Shimano's Gravel Alliance and now the Shimano GRX - the world's first series with components designed specifically for gravel. The goal is not to dominate the gravel scene or change its direction. Shimano did not want to reinvent the wheel. The engineers at Shimano love graveln as it is. Shimano simply wanted to give you and your friends the ability to ride the way you want with a new component group. And the GRX does just that. Last but not least, the designers envisioned a Shimano GRX groupset that would deliver peak performance in gravel races while offering options that would make it affordable for cost-conscious riders. By setting these design goals, Shimano have created components that are also suitable for cyclocross, bike adventures, and almost any similar type of cycling discipline. Shimano Shadow RD+ means a silent drive with an additional rear derailleur stabilizer, which reduces the beating of the chain to prevent it from jumping off.