hi everyone :grin:, this is my wifes bike she has a hard time riding normal bikes (freak accident when she was a kid) so i bought her the trike on ebay last year for half its listing price, its the sun easy trike AX upgraded model. The motor came in kit form from a company out of San Francisco, which i found after many hours surfing the www. Since there were vague instructions i had to rely on pics from a previous installation they had sent me. It was a pretty easy installation for the most part the hardest part was replacing the bb and crank set but went out and bought the proper tools and everything went smoothly. one of my main concerns was loosing the front crank which had three rings i was worried about the actually weight and the new motor been up to the test. The single sprocket works just fine, i am still tweaking the system the first couple of days had there highs and lows but with some fine adjustments here and there i am starting to get the system dialed in. With me riding its fine but by the time the kids are in the trailer and hooked up its plenty of work for this 350 watt motor. I am learning the limits and enjoying the ride since the batteries have been re-charged a couple of times they are starting to preform better. The kit consisted of 350 brush less motor, the new front bb and sprocket,the two 12 volt acid batteries, the controller, the charger unit and the wiring needed to hook it up. The system is a mid drive unit so i was still able to keep my rear cassette operational but unfortunately i had to loose the front gears but the motor has plenty of zip to keep the trike moving. The batteries already came in a case which has velcro straps everywhere so it is pretty easy to attach to the rear of the trike and keep the center of gravity low, i use a bungee cord as a back up, just in case. I was going to document my build but one of the kids had mis-placed the digi camera so the pics below are all after the fact. I have took shots of every possible part that i think would be useful for people looking for ideas, if you have any questions please feel free to ask and i will try to answer to the best of my knowledge although i will warn you its pretty limited.... Enjoy the ride.... MBC: EDIT THIS THREAD HAS BEEN MOVED TO THE PICTURE SECTION.