By pairing the spoke holes on the hub flange we optimize the usage of the hub flange diameter as well as the hub lacing pattern. Here are the benefits of this design:
In the same way that a mediocre hub can bring down a world-class rim, a high maintenance or otherwise underperforming bearing can bring down what would otherwise be a best in class hubset. For this reason the Carbon Road Hub comes spec™d with custom premium grade stainless steel bearings. Those familiar with the original ENVE carbon road hub know that it included ceramic bearings. While ceramic bearings are capable of delivering extremely low rolling resistance and therefore high levels of efficiency, this is primarily achieved by using non-contact bearing seals that eliminate friction between the bearing race and its seal. While fast for the moment, this bearing setup is readily contaminated and if not maintained, bearing performance can be compromised in one ride through harsh weather conditions.
It is our opinion that the stainless steel bearing spec™d in the Carbon Road Hub is an upgrade over the first generation™s ceramic bearing both in terms of rolling efficiency and long term reliability. To achieve a balance of long term reliability and efficiency contact bearing seals are used anywhere a bearing is exposed to the elements while non-contact type bearing seals are used on all internal bearing faces.
In testing, the stainless steel bearings rolled fast and smooth for literally thousands of miles beyond what the best ceramic bearings were capable of. Additionally, the use of stainless steel means that for cyclists living near the coast, in high humidity, or frequently riding in the rain, your bearings will resist corrosion and look beautiful for years beyond what a traditional bearing is capable of.
Specifications: