i bought this used Hp Velotechnik Scorpion Trike and put a electric motor kit from the german manufactor "E-Liberty" in it. The motor got just 250W but it still goes 40 km/h on a straight road. The batterie got 36V and 20 Ah and get a range up to 100 km. On the construction i got a lot inspiration from this forum
Sorry for bad english. I wish you all the best. CU




