Shimano GRX is here: gravel-specific and 1× components for Ultegra, 105 and Tiagra - BikeRadar
Grupo Completo Shimano GRX RX820 42D 172.5mm 1x12v
Shimano GRX - Gravel Bike Tech - A new series of technical articles - 3T Blog
GRX 11-speed | SHIMANO BIKE-EU
Shimano GRX RX600 Groupset 2x11-speed | BIKE24
Cassettes Shimano Grx Hg500 10V
Shimano-Cassette de bicicleta de carretera 10 S GRX CS-HG500, 10V, 11-25T, 12-28T, K7, para Tiagra 4700, 4600, 5700, volante de inercia de 10 velocidades - AliExpress
Evo Cycles - Shimano GRX RX800 1 x 11 Groupset
SHIMANO-piñón de Cassette GRX para bicicleta de carretera, 11 velocidades, HG-EV CS-HG800-11-34T - AliExpress