The Shimano GRX FC-RX810-1 crankset is designed for gravel, adventure, and cyclocross riding. It is a 1x crankset, meaning it is designed to be used with a single chainring and is not compatible with front derailleurs. It is available in various chainring sizes to suit different riding conditions and preferences. The crankset is compatible with Shimano Hollowtech II bottom brackets, which are sold separately and is constructed using Hollowtech II technology with a two-piece crank arm and spider arm. It has a chainline of 48.8mm and a Q-factor of 151mm.