Shimano Di2 Ultegra STI Front Wiring
Shimano Di2 Ultegra technology offers stress-free operation at an affordable price. This split wire harness connects the left and right shifter/brake levers together through the junction box with an SD50 wire (sold separately).
- Digital operation reduces the chance of human error and allows for continuous durability
- Ergonomic controls with Di2 technology for improved steering control and next generation riding experience
- Not compatible with Di2 Dura-Ace components