but compatible with any of Shimano’s other 11-speed road shifters. For flat bar setups, the RX can be paired with Shimano’s Metrea SL-U5000 shifter that is compatible with road rear derailleurs.

Today, Shimano announced its new electronic 2x12 gravel drivetrain, GRX ... derailleur shifts automatically when the rear reaches a certain gear on the cassette). You can also change the speed ...

Madrone currently has solutions for both Shimano and SRAM 11 & 12-speed setups, but more unique combos are in the works too.