Originally Posted by
PavelSpesivtsev
Thank you for your input! At this point the old tires are my main suspect. I just ordered two "Goodyear 26" x 1.9"-2.3" Heavy Duty Bike Tube" and I will be looking for tire replacement as well.
I guess in your case garage damps a bit Texas temperature hikes, I don't have such opportunity unfortunately.
A sheet of plywood between the bikes and the sun will work wonders...