The Ultegra 6800 hub has a very nice design, the beautiful dark gray color fits almost all colors rims. The Ultegra 6800 hub runs very smoothly due to the cone bearing, which ensures great accuracy.
The execution of the Ultegra 6800 hub is based on cone bearing where the focus is on reliability and better performance. This means the hubs last much longer and they are also easier to maintain. All this has been made possible by the Digital Click technique. Shimano uses the technology of Cup and Cone where the cone bearings are much more durable than the sealed bearings. A cone bearing can distribute the force more evenly so that the bearings rotate extremely light and last longer. Moreover, the cone bearings are easier to maintain and easy to replace.