Long known for its aero bars and wind cutting triathlon accessories, Profile Design has expanded its reach over the past few years to include additional componentry, including wheels. The 58TwentyFour Carbon Clincher Wheelset combines Profile's long established expertise in aerodynamics and reputation for durability to give any road or time trial bike a fast, smooth ride towards whatever finish line you choose. Profile collaborated with specialists in Computation Fluid Dynamics to analyze wind tunnel data and determine the best rim shape to achieve low drag and solid handling in crosswinds. To replicate real world situations, the engineers even mapped out weather data from recent high level cycling and triathlon events to recreate those wind conditions in the tunnel. The result of all this work is a wheel that isn't just fast in the virtual lab world it's fast out on the pavement in real world wind conditions. The name tells you a lot about these wheels. The 58 references a 58mm medium dish, aerodynamic rim with an external width of 24. 5mm to straighten the tire's sidewalls for a plusher ride with less rolling resistance. The rim itself has a slightly curved side and rounded spoke facing edge that manages the lateral force of crosswinds for better stability than traditional airfoil rims. Profile uses its own high Tg point resin on the carbon braking surface for a claimed 30% increase in heat capacity compared to other high Tg resins used in the industry for carbon braking surfaces. This means, in theory, that these wheels have better, more consistent braking across changing weather conditions and long descents than the competition. The wheels let you stop constantly checking those hourly temperature reports and radar forecasts and get out for a ride with confidence that you'll be able to stop when you need to, regardless of weather. The other half of the name references Profile's TwentyFour Series hubs. They're made of forged and machined 6061 T6 aluminum...