Could be one of 3 things. #1 clutch - which I don't think would be it cause you can push in reverse easily #2 rear brakes could have gotten wedged so you can roll backwards but not forward #3 wheel bearing could have went out on one side allowing you to move Rev but not forward. Oh just thought...
Ok so here's the deal. I have a 125cc that is the "big wheel" 17/14 . I'm wondering if I can go up in rear tire size to the 16"-17" <- pushing it there. Anyways so is this possible? I'm somewhat new to the mini thing and don't know if this is taboo or not. Any advice is appreciated.