This is a Giant CRX 4 set up with the Swift kit that had a 200W mini-motor and water bottle battery. It added just over 6kg to the bicycle. Its top speed is 28km/h. I went over 40km on a single charge and it hadn’t run out and felt as good and powerful as at the start of the ride. Great up all hills I encountered and I only pedalled very lightly the whole trip.