Originally Posted by Ganesha
Can someone explain to me why Lance didn't have a solid back wheel in today's time trial when everyone else does? Does Lance know something everyone else doesn't?
IMO it looks like he was using a pair of HED 3's. The 3 is lighter than the disk. This TT was more climbs/rollers than any Tour TT in the past. George Hincape also was not running disks but some very deep profile rim spoked wheels. Most of what is used is determined by windtunnel testing and weight vs. aerodynamics. Possibly this stage profile may have dictated a compromise between weight and aerodynamics.