Karcher aluminum electric folding bike, 6-speed Shimano derailleur system with rear engine and Shimano hub dynamo, Silver, Frame height: 30 cm, tire size: 20 inches (50.8 cm), 280 347 (equipment)
Unfortunately the bike was delivered defective and the return cost us some time and nerves. The wheel itself is easy to assemble and then to tighten all the parts, very good working order. The battery is not very powerful, alas. So with vigorous pedaling I got grade times 26 km away. I think that now is not just remarkable. As a replacement battery is probably needed to. You can go for as a folding bike quite well. With engine it is a stunner and brings some "professional cyclists" to marvel, so as surprise. For longer distances, it is getting used to because of the small wheels. Nevertheless, the battery would have more power, it would be their best.