old topic but at work I use the plug kit all the time (royal Canberra gold course) on the quad bikes and mowers, not that the mowers go quick, but the work quad is a 600, kinda the workshops emergency response vehicle haha, all the tyres on it have like 20 repairs, on 40 psi, I have personally been about 90kph on it, had to get a to the excavator to get his truck unboged before the stupid royal f**ks started playing golf... I have only had one plug come out before, didn't let it set before riding the quad...