Originally Posted by
Bill Kapaun
Maybe it's when the slightly undersize tube makes contact with the tire when inflating, it "creeps" a bit and leaves "scuff marks"?
Also thought about it, I sometimes even hear a popping sound when a new tube untwists itself during inflation in the tire. Maybe that's it.
Last edited by alexk_il; 06-27-22 at 02:48 AM.