I stopped suddenly at my mail box about 3 months ago and all of a sudden the engine would run but wouldn't stay in gear. Had to totally discontect the battery before the bike would reset and start again. It's happened 2 more times. There is a slight 2 inch drop off, but I didn't know that would activate that switch. Is that normal, especially on a Trike? I'm told it was because of a tip over sensor that takes it out of gear and won't let it engage in gear. Never had that happen on any of the 10 Wings and three of them have been triked.