With Di2 technology, shifting gears becomes effortless and precise, requiring just a light touch, comparable to a mouse click, to instantly select the correct gear for both the front and rear derailleurs. The system is fully compatible with both full and semi-synchronized shifting programs, allowing you to customize your shifting preferences. Synchro shift compatibility enables a single shifter to control both front and rear shifting, with semi-synchronized shifting automatically adjusting the rear derailleur to maintain the optimal gear ratio during a front shift. The intuitive design places the shift buttons in a familiar position similar to traditional mechanical Shimano STI levers, ensuring easy and comfortable shifting, even with cold hands. The Servo Wave brake lever pivot is optimized for use with super SLR brake calipers, delivering increased braking power and excellent ergonomics when riding on the hoods. Fine-tune reach adjusters allow for a customized fit, ensuring comfort for all hand sizes. The system connects to the front and rear derailleurs via SD300 series wires and comes complete with an SLR brake cable set for seamless integration.

• Di2 technology provides precise, effortless shifting with just a light touch.
• Fully and semi-synchronized shifting programs compatible for customized control.
• Synchro shift allows single-shifter control for both front and rear derailleurs.
• Semi-synchronized shifting automatically adjusts the rear derailleur for optimal ratios.
• Tactile shift buttons positioned for intuitive use, similar to mechanical Shimano STI levers.
• Servo Wave brake lever pivot for increased power and excellent ergonomics.
• Fine-tune reach adjusters for a perfect fit for all hand sizes.
• Wired connection to derailleurs using SD300 series wires.
• Includes complete SLR brake cable set for smooth and reliable braking performance.