Shimano Ultegra FC-R8000 Chainring 46t R ARM BCD 110mm for 46-36t 11 Speed R8000
Shimano's Ultegra R8000 crankset with 46/36 chain rings is still the best option for a cyclocross double, but it won't work with the GRX front derailleur. - Cyclocross Magazine - Cyclocross and