Corima's wheels have consistently provided the exact precision and attention to detail that you'd expect from a brand that started out in the aeronautics sector. The new Viva S Carbon Clincher Road Wheelset is placed at the top of its clincher pack, perfectly illustrating that seemingly elusive do anything carbon clincher that we're always searching for. And thankfully, the hunt might now just be over, as these 32mm wheels are light enough to be used on the steepest of climbs, spin up fast on the flats, and remain exceptionally stable in crosswind conditions. With a background in producing mechanical molds in the fields of automotive and aeronautics, French manufacturer Corima branched into the cycling arena by launching its first disc wheel in 1988. Its wheels quickly caught on with track cyclists and road racers around the world, as the manufacturing precision and composite expertise was noticeably superior to anything that its competitors were making at the time. The tradition of pushing carbon boundaries hasn't let up for Corima, as its years of composite know how and constant innovations continue to set records and propel cyclists to victory in the most renowned races on the planet. An integral part of this success is derived from each of Corima's wheel components being built in house. For the new Viva S Clincher Wheels, this is no exception. The hubs and rims used to build this lightweight clincher were manufactured under the same roof in its Southern France facility. For the construction of the 32mm Viva rim, Corima used pre impregnated sheets of 3K 3000 filaments per square weave carbon fiber for the wheel. These sheets were then formed into its torsion box Concept 2D shape, which results in a subtle U shaped profile with a moderate 22. 6mm width. Corima also uses its HPS technology with its carbon clincher rims, meaning that they are made of 100% carbon, without incorporating any metallic parts. The reasoning behind this is to keep the weig...