The DURA-ACE Di2 groupset is the result of Shimano’s ongoing passion for technology. This is reflected in every single component in the groupset. All components are joined together to work as one, reinforcing each other for unparalleled performance.
Includes bottom bracket. The Shimano 105 groupset continues to evolve. This Shimano 105 5800 11-Speed Groupset has successfully narrowed the gap between 105 and Ultegra. Shimano's 105 11-speed groupset is precise, efficient, and reliable.
Highest level of online security for your peace of mind