Big Jim you must MUST get the tire 100% seated even. I rode off on hard aired rear that was 97% seated and at 6 mile mark it re-rimmed at 55 and injured bars, wrists, stem stop and tank front not to die hi sided into oncoming lane. I will not ride if tire not full right now and ordered inflated 360' rim lock called "Tubliss" to avoid the horror again. Some tires may be cast distorted others just not quite right size for rim. I have best luck to lay tire on side and with soapy lube bump the excess side toward opposite indicator then fast inflate till pops around but don't always work out well first few times. I also will set in hot sun or use hair drier inside till rather how to touch. Some very hard to get on or off, I'm giving up forcing and getting 2 foot long profession levers that tractor mowers and ATV'sneed.