By Christopher A. Sawyer
This is no ordinary electric bike. Designed for the Wörthersee Tour, the Audi e-bike Wörthersee will be demonstrated by trial biker Julien Dupont and downhill specialist Petra Bernhard, and features a compact, low center of gravity carbon fiber frame and rear swing arm. The same material is used for the 26-in. “ultra-blade” wheels. A lithium-ion battery pack is contained within the frame itself, and is easily replaced with a charged pack on long rides if the 2.5-hour charging time is too onerous. However, these are not the bike’s most interesting features.