I recently purchased Ebikeling 1200 watt rear direct drive kit for my 29in MTB. I purchased a 48v 15.6 ah battery to go with it off of E-bay. It ran great for about 200 miles. I had to switch the tube out today. After i put everything back together, the motor is all of the sudden turning in reverse. Everything is installed correctly and I did not mess with any of the wiring. I have triple checked everything, disconnected battery and all wires then re-connected everything and it just will not go forward. Anyone have any clue on a fix? I emailed them and of course they tell you they will respond in 48 hrs. and no telephone number. This is my ride to work.