My swytch'd bike is not yet on the road for good, but the installation following the enclosed guide worked like a breeze. Not included though were usage instructions for the throttle (agreed, no need ;-) )and the "advanced" display which I would have liked to know how to handle. Found out by trial and error in the end. The bicycle itself though has gone through a ginormous transformation, it is still my beloved old bike, but, people, does this work well now! I liked the idea from the beginning, but got somehow scared when I got to install all the parts. For no reason, as it turned out. Not more than an hour later I was looking at an e-bike, working perfectly whilst not gotten any bulkier than it was. Thank you! Having said that, the kit is not cheap, plus I had to pay a horrendous customs fee (thanks for nothing, Brexit) on top. But if you own a bike you love, there is no better way to make it electrified!