Tourist in MSN

Touring with my camping gear, I probably have the same weight on the tires as you do without any gear at all.

I do not have any 1.75 width tires.

- 57mm width, 45 to 50 psi in the rear.
- 50mm width, 50 to 55 psi in the rear.
- 40mm width, 75 to 80 in the rear.
- 35mm or 37mm width, up to 85 in the rear.

Front, about 75 to 80 percent of the pressure that I have in the rear. Thus, if I had 80 in the rear, front would be about 60 to 65 psi.

The pressures above are what I pump the tires up to, so they should be considered maximum. I often will go for a week or maybe more before adding pressure, so I often run quite a bit less when you consider leakage.

There are exceptions, last spring I was on a van supported trip in W Texas where they had a very rough chip seal pavement. First day I had about 55 to 60 in my front 40mm tire and my hands took a beating, my GPS on the handlebars kept acting up too. Then next day I dropped the front pressure to between 40 and 45 psi and that was much better on my hands, the GPS was much happier too.

And off road or on gravel, I might run lower pressure for better cushioning and better grip.

ADDENDUM ADDED HOURS LATER

This is the touring forum, so I was thinking a loaded bike, but I did not clearly state that. The pressures above are what I would be using for touring with my camping gear on the bike. Riding unladen, I would be running lower pressures. I also have some bikes with skinnier tires that I did not list above because I would not be touring on those bikes.