Originally Posted by Imaginos

I started riding this year after retirement and at 1800 miles I’m up to seven or eight flats. I ride a little gravel but mostly paved shoulder. I started out on a used mtb and ended up buying two more bikes new. They all had new tires and tubes and all three have had flats. I know flats happen but come on,is this normal?Mostly back tires.I am surprised at the recommended tire pressures of 50 lbs plus on these things. Finally,are the “slime”filled tubes any good?Thanks.