Shimano Ultegra Di2 R8170 2x12-speed groupset Brakes The triangular design won't chafe

The triangular design won't chafe your legs while riding and has side pockets for storing small items

3L EXPANDABLE CAPACITY: The roll-up design allows you to adjust the saddle bag's capacity with external adjustable elastic straps

100% WATERPROOF: With seamless welding technology

Weight: 26 g

Shimano Ultegra Di2 R8170 2x12-speed groupset Brakes The triangular design won't chafeShimano Ultegra Di2 R8170 2x12 Speed ?? Groupset Shimano's Ultegra Di2 shifting systems utilize wireless technology wherever it offers advantages in everyday use as well as in competitive riding. Eliminating the connecting cables between shifters and derailleurs results in a cleaner cockpit and simpler setup. Connecting the rear derailleur and front derailleur to an internal battery ensures a stable power supply and maximum reliability. Included