Gruppo Shimano Ultegra Di2 8170 12V Disc Regolatori dissipating internal heat and ensuring

dissipating internal heat and ensuring the rider optimal ventilation and perfect airflow while riding

It’s ideal for athletes and enthusiasts who like to practice sports even during warmer seasons

5" Wheels Int: 30mm Ext: 34

Connected to compatible cycle computers

Take your workouts to the next level

Gruppo Shimano Ultegra Di2 8170 12V Disc Regolatori dissipating internal heat and ensuringThe most revolutionary transmission system in the world Shimano has taken a 100% performance focused approach to make the new ULTEGRA groupset even faster. Whether you're competing in local races, beating your personal record, or sharing the pure joy of riding with friends, the new 12 speed road groupset offers unmatched control and comfort, all day, every day. This is what sets Shimano apart from the competition. The revolutionary HYPERGLIDE+