Shift/Brake Combinations

The Shimano GRX Di2 Dual Control Lever delivers light and responsive shifting for mixed-terrain riding. The ergonomic shifter design improves comfort and the textured, anti-slip brake lever increases control on bumpy terrain. The Di2 version offers the digital precision of Shimano electronic shifting, along with synchronized shifting. - Raised hood head prevents hand misalignment and slippage - Recessed finger notch prevents upward slipping - Anti-slip texture and brake lever coating - Improved braking input performance - Higher brake lever axis and curved brake lever - Improved grip and confidence on choppy surfaces and descents - Higher braking efficiency reduces fatigue on long rides

The Ultegra ST-R8070 series shares the same Di2 electronic shifting technology as Dura-Ace at a more affordable price. Featuring hydraulic-actuated brake operation and improved ergonomics for all-day riding comfort and performance. - Clearer separation between the buttons ensures precise shifting even when the rider wears thicker gloves - Multi-Shift can be switched on or off individually for each switch - The buttons under the top cover can be programmed to control third-party devices - All features are customizable with Shimano’s E-Tube app or PC software