Groupe SHIMANO DURA-ACE DI2 R9270 2x12V Cranks - Chainrings - Cassette - Bottom Bracket - Discs:170mm - 52/36 - 11/30 - without bottom bracket - 160/140mm which also protects the sidewalls

which also protects the sidewalls and thus reduces the risk of punctures

The HOPE type Z FlatMount front calliper adapter allows the fitting of a Flatmount RX4+ 34 mm calliper:

gear shifts are fast and precise

Subtle reflective details enhance your visibility

Groupe SHIMANO DURA-ACE DI2 R9270 2x12V Cranks - Chainrings - Cassette - Bottom Bracket - Discs:170mm - 52/36 - 11/30 - without bottom bracket - 160/140mm which also protects the sidewallsThe SHIMANO Dura Ace Di2 R9270 2x12V groupset represents the pinnacle of technology and innovation for road bikes. After years of research, Shimano has developed its fastest and most advanced drivetrain to date. This 12 speed groupset is designed for cyclists looking to push their limits, with every component optimised to gain precious seconds during races or intense rides. Thanks to Di2 technology, every gear change is instantaneous and precise, even