It works We wanted a kit that was simple to install and did not add too much permanent weight to the bike, to make it easier to transport it in the car, and we did not want to spend a ton of money. We installed it in a hybrid Btwin 900 from decathlon very easily, without having to file the forks. The only issue was the hydraulic brake sensor, which we had to attach to the front of the brakes where there wasn´t a nicely flat surface. We solved that with some glue and sugru, and it took some adjustment to get it in the right position (basically the magnet has to touch the sensor when not braking). After that the kit worked really well. We have the 50 mile battery and we can get at least 60 km on hilly terrain and middle assistance. My wife can keep up on long excursions or go shopping on our hilly town without too much effort. The settings are very customizable and the thumb throttle is really convenient when starting from a ramp. We have also been out in heavy rain with no issue, as well as in forest roads. In our 31.8 handlebar the arms of the bracket don´t touch when closed. We tightened it too much and it broke. Swytch sent us a new one for free. Also we had a very long upright stem and the weight of the battery made the bike twitchy, but we changed that to a horizontal 70 mm stem and it is much nicer. When we decided to change the bottom bracket from square tapered to SRAM GXP we had to file the PAS sensor. I got it wrong the first time and they sent us a new one for free. I am very happy with the customer service.