Shimano GRX ST-RX815 Di2 Hydraulic Disc Brakeset Rear closeout and finish with BioViz elements

and finish with BioViz elements that can be displayed with an upturned hem

AutoHead™ with ball inflator accessories

low density core

Eagle pulley technology provides greater efficiency

resulting in more consistent

Shimano GRX ST-RX815 Di2 Hydraulic Disc Brakeset Rear closeout and finish with BioViz elementsThe Shimano GRX ST RX815 11 speed Di2 shift brake lever integrates electronic shifting with improved grip and confidence on chippy surfaces and descents. A raised hood head prevents hand misalignment and slippage, while a recessed finger notch prevents upward slipping Anti slip texture and brake lever coating Higher brake lever axis and curved lever allow for higher braking efficiency to reduce fatigue on long rides Tooled reach adjust allows for