The bora ultra 50 tubular dark label road wheelset is a high profile wheel from campagnolo for shimano cassettes for 2015 the bora ultra 50 features improvements to the previous version in terms of lightness aerodynamics stiffness and comfort thanks to use of the new wider rim and front and rear hubs with different diameters as well as this all campagnolo wheels are entirely hand assembled by a specialised campagnolo technician and is checked in every tiny detail with electronic instrumenta