Fitted the kit to my wife's stepthrough bike and its transformed it for her, she has a bad hip and the swytch kit enables her to cycle again. It took a few months to arrive as explained when I ordered it and I was impressed with the quality of the components. Fitting was OK for me being a mechanic just followed the manual, the only thing I had to alter was to fit a rear mounting propstand as the pedal sensor was in the way of the central one. I also went for the uprated handlebar control and like that it shows your speed. We are getting 35km on the bigger battery, Other positives are it's not heavy like a big electric bike so we can take it in the car to other areas, being an older bike it's not so obvious to thieves and the cost is less, I would recommend to anyone who wants to get more out of leisure cycling or commuting