Originally Posted by
Andrew R Stewart
Agree with Jeff. The usual worst case is a slightly faster leak down over the days/weeks after inflating. It you ride with too low an air pressure the tire can creep/shift around the rim and the tubs valve being trapped by the rim hole will stay put and the tube will get stretched on one side and might bunch up on the valve's other side. But this happens due to too little pressure and not tube fit. So just keep the air pressure topped off before riding. Andy
On a smaller tire I'd agree wholeheartedly. But what about the fatness of the tire? I've seen some stupid-low recommendations for tire pressure with wider tires. I don't know where the inflection point would be between "no problem" and "the pressure of a XX tire is too low to keep the tube in place." Do you have any information on how wide a tire or how low tire pressure can go before one runs into the problems you described?