Shimano Dura-Ace Di2 R9270 Groupset with 4iiii Power Meter
Dura-Ace is the pinnacle of Shimano road technology and innovation. Speed was the driving force behind the new generation of road groups, and every decision our designers made was to make you faster. Shimano engineers worked to refine each component and every function to provide the best on-bike experience, whether you're sprinting to the finish on the Champs-Élysées or crushing your local climb.
This is the ultimate groupset for a rider who demands the best. DURA-ACE is based around a concept of striving for perfection in every aspect to create the fastest and most inspired drivetrain ever.