GRX RX400 Braze-On Front Derailleur Vendor_American Cycling Publications it comes in X01 Eagle™

it comes in X01 Eagle™ master colorway to go perfectly with any color cassette and chain a rider wants

12 speed Rear Derailleur Shimano Ultegra

X-HORIZON design reduces shift force

Size: Small/Medium

and full frequency response from 20Hz to 20kHz

GRX RX400 Braze-On Front Derailleur Vendor_American Cycling Publications it comes in X01 Eagle™GRX FD RX400 Front Derailleur FEATURES: An ergonomic power curve and link (toggle) construction help to provide a natural stroke feeling when shifting An additional 2. 5mm is added to the chainline to provide more room for wider tires Compatible only with ST RX400, ST RS405, SL 4700, ST 4720, and ST 4725 shift levers Compatible with up to 42mm tires Link (toggle) construction allows for more cable routing options Integrated cable tension adjustment