I have a totally useless kickstand on my Huffy Millennial now motorized bike. It will absolutely not stay upright. Bike is a 29 inch and the kickstand is not stable or long enough to keep it upright without playing delicate balancing acts, it falls over repeatedly. My garage is stuffed with other fun toys and it scratched one of my motorcycles. I see a bunch on Amazon, can anyone recommend a really stout and very stable one?