haven't ridden in many years got my bike going again - 78 sporster want to make a trip to the USA - 300 miles. traveling by bicycle, I could pull the tires off the rim and patch the tube without removing the wheel - especially the back wheel. can one do that with motorcycles tire irons? hear the stuff sprayed into the tire isn't any good for flats? the motorcycle being so heavy and all, I can't seem to get my head around a flat. I have never seen a motoryclist dealing with a flat as opposed to cars and bikes. thanks for suggests, and words of confidence appreciated.