Mounts to the B-Rad base mount (not included)

to the drops

The Shimano GRX ST-RX815 11-speed Di2 shift/brake lever integrates electronic shifting with improved grip and confidence on chippy surfaces and descents

Low profile Scallop shaped platform

The Kitsuma is Tranzx most popular dropper

SHIMANO GRX Disc Brake Set BL-RX810 - Front can be discounted Mounts to the B-Rad baseSHIMANO GRX Hydraulic Disc Brake DUAL CONTROL LEVER SERVO WAVE ACTION 1x11 speedThe SHIMANO GRX BL RX810 L shifter bring greater rider control for mixed terrain riding thanks to SHIMANO's category leading hydraulic disc brakes. Greater mixed terrain control Gravel inspired lever and bracket ergonomics Anti slip ribbed surface texture and brake lever coating SHIMANO GRX Flat Mount Hydraulic Disc Brake Brake Caliper With a low profile Flat Mount design,