Shimano GRX ST-RX825 Di2 Shift/Brake Lever - Right 12-Speed Black MFPN=THT-30 42mm rim profile and flat

42mm rim profile and flat spokes are wind tunnel proven for low wind resistance and excellent lateral stability at high speed

so SNS users will need to switch to a Prolink or NNN- compatible boot to use the system

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Model Superzero Carbon Seatpost Diameter 31

All of these fibers have strengths and weaknesses

Shimano GRX ST-RX825 Di2 Shift/Brake Lever - Right 12-Speed Black MFPN=THT-30 42mm rim profile and flatThe Shimano 12 speed Shimano GRX Di2 Dual Control Lever delivers fast wireless shifting for gravel and mixed terrain riding. The ergonomic lever features raised hoods ribbed surface texture and an anti slip coating on the brake lever for increased security and control. The hood body bracket shape is newly optimized for seamless integration with flared handlebars while retaining the gravel specific third button location. To complete the cockpit RX825