It's a long way from the Tuesday night crit to the Ironman Championships at Kona, but riders on the HED Jet 9 Clincher Wheels keep racking up wins at both. Hybrid alloy/carbon construction offers the braking performance and durability of an alloy rim and the speed that comes from HED's exceptional aero designs. For 2011 the HED Jet 9 Rear Clincher Wheel is tuned with HED's proprietary SCT (Stability Control Technology) - adding improved crosswind handling to their stellar ride and cornering characteristics. The 2008 introduction of the C2 platform was a dramatic improvement over HED's previous designs: aero drag was reduced substantially, and the use of wider tires dramatically improved cornering. Since the introduction of the C2 platform, HED has spent two full years developing SCT, their proprietary rim profile tuning process. Each rim depth is shaped for lowest aero drag and fine-tuned to maximize stability in crosswinds.