Received the conversion kit within 5 days of ordering. I had to use the rear wheel kit because of specific applications for my bike, and that added a little extra work (remove the rear derail-er before mounting tire rim for clearance issues). Went together very easily and has worked as stated. I have been keeping track of miles ran on a freshly charged battery and have reached the 40 mile figure that it is rated for. I use the “assist” anytime going up hills and to build momentum on the flats (running the motor maybe 60% of the time. Enjoy it very much and will possibly get another in the near future.