Can someone advise me on how get correct tire pressure? I have a bike pump that has a gauge but I don't think it is correct. My wife's bike had a flat so I replaced the tube, that tube went flat while sitting in the garage, not in the same spot. I checked the tire and rim again for anything that could be causing the whole, but nothing was found. I replaced the tube again and we went riding. While riding the tube popped again, again in a different spot. The first time it happened I thought it could be due to an old tube, the second time I thought it could be a bad tube, but 3 in a row?
What I'm thinking is my gauge is wrong and I'm putting too much air pressure in the tire. The tires are supposed to be inflated to 120-125psi but when I'm pumping them up once I get to around 100psi on the gauge it gets difficult to pump them up. Could this be the problem, if so is there a way to check tire pressure or a way to know if you have about the correct amount? Both my wife and I are recreational riders so we don't have to have the "exact" amount, I'd rather had a little less so I don't have to keep replacing the tubes. Is there a rule-of-thumb to go by?
Thank you!