Shimano GRX Groupset was launched in several series, namely RX800, RX600 for 11 speed or RX400 for 10 speed with a choice of 1×11, 2×11 and 2×10 drivetrains as well as mechanical or electronic/Di2 shifting options. After going through various processes, starting from a very comprehensive research, through a development and testing process, as well …
