The Swytch universal ebike kit is a great product. I converted my wife’s Specialized Hardrock mountain bike with this kit. It is very easy to install following the instruction manual and the video. The kit is extremely light weight because the controller is built into the battery. It only added 11 lbs weight to her bike vs. my e-bike with separate controller and battery has added a total of 22 lbs instead. The service is excellent. The kit took a longer time to deliver then original estimate but is understandable because of the pandemic crisis as all the kit were assembled in China. I did receive email notices regularly throughout the period to inform me Swytch’s progress in production. The Swytch also sent me a brake sensor without charge as a courtesy to my request. As for the ride, the PAS sensor works very well and smooth, and the operation is simple and straight forward. My wife loves her ebike that makes going uphill an ease. She is totally happy with her ebike experience. I highly recommended.