I am Rich Kemnitz currently head tech and former part owner of Crazy Lenny's Ebikes in Madison Wisconsin. This is my second profile on this forum having forgot my credentials for the original. We are one of the largest exclusively electric assist bicycle dealers in the nation. I hold a doctorate in Physics and a masters in mathematics. I have over 50 years on hands experience in various technical fields working for many different private and governmental concerns. I also run a part time business (Rich's Rides) focusing on vehicle design and fabrication since 1972. I have personally assembled close to 10,000 Ebikes and serviced hundreds more of many different brands as well as fabricating many custom machines. Many manufactures consult with me in product development and troubleshooting. I offer my experience and knowledge to this forum to encourage others to experience and enhance their enjoyment of electric assist bikes. Looking towards retirement and exploring other ventures I apologize ahead of time for any delays in replying to questions but invite you to pick my brain. Keep up the good work Court it was nice meeting you in Colorado I wish my health would have allowed me more time. Current projects include designing an affordable private lighter than air craft and various alternate propulsion systems. Thanks for your time and attention.