i was trying to top off my 2005 GL 1800 tires. I decided to go with the max recommended of 36 and 41. No problem with the front tire. Rear tire just wouldn't take more than 38 pounds. I decided my gauge was faulty. Found another gauge, same result. I have a small Campbell Hausfeld compressor that I bought used a couple of years ago. It shows it is holding about 80 pounds of air in the tank. Anyone else had problems gassing up their rear tire. Oh BTW, finally got the bike on the centerstand. Jeepers. I even used a board on the back tire and barely got it up. The bike, that is.