Shimano Ultegra Di2 R8170 2x12-speed groupset Brakes Brand: ROCKBROSColour: BlackMaterial: Polyester

Brand: ROCKBROSColour: BlackMaterial: Polyester

Weight: 26 g

sweatproof

offering a good combination of flexibility and security

Shimano Ultegra Di2 R8170 2x12-speed groupset Brakes Brand: ROCKBROSColour: BlackMaterial: PolyesterShimano 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