8 years?! With a plug?! Man, I'm surprised it didn't blow up!I replaced my tires on my CBR this summer, the rear had been on there over 8 years and had a plug in it all 8 years. Never did go flat.
Today however, beautiful day! Sunny, not much wind, ~57 degrees! Funny how 57 and sunny seems like excellent riding weather as opposed to cloudy and 57.
As for cloudy vs. sunny at the same temp? Yeah, makes a yuuuge difference! Radiant heat is the motorcyclist's best friend when the temps start to drop.