Shimano - Disk Brake Assembled Set, GRX Di2, ST-RX815 Left, Front
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The Shimano GRX ST-RX815-L Di2 Hydraulic Disc Brake Dual Control Lever Left and BR-RX810 Hydraulic Disc Brake Caliper allows for more intuitive shifting and improved grip and confidence on choppy surfaces and descents with the added bonus of hydraulic disc brake: better rider control in all conditions. The Di2 levers have a clearer separation between the shift buttons ensuring precise shifting, even when wearing thicker gloves. Each switch can be used for multi-shift ON or OFF and top hood buttons can be programmed to control third-party devices. All functions can be customized through the Shimano E-Tube app or PC software for the best in electronic shifting. Shimano GRX Di2 offers the most precise and reliable shifting imaginable, at the push of a button. Adjust the derailleurs once, and the intelligent, auto-trimming system returns derailleurs to the same position every time.
The BR-RX810 Hydraulic Disc Brake Caliper provides the next stage of control, allowing the rider to exert advanced brake performance in all conditions. Its sleek design integrates seamlessly in your bike's profile. Flat mount hydraulic disc caliper.