SHIMANO 105 Di2 12-speed brings premium Shimano quality to everyday riding. Electronic shifting with a silent drivetrain and precision braking.
Utilizing DURA-ACE and ULTEGRA technology, SHIMANO 105 Di2 is a comfortable and accessible groupset for any level of rider looking for the most affordable, high-performance tech. With wireless Di2 shifting for all the joys of superb shifting performance without the messy cables. Shimano 105 Di2 has an exceptional battery life of more than 3 years for the shifters and +/-1000 kilometers for the front and rear derailleurs.
Customizable using the E-TUBE PROJECT app via your smartphone/tablet and Bluetooth. In SEMI-SYNCHRO mode, the rear derailleur automatically adjusts to reduce big jumps in gear ratios, allowing you to maintain your pace and rhythm. In FULL-SYNCHRO mode, the front and rear derailleurs work in perfect harmony to get you in the right gear at the right time.