Originally Posted by
gecho
The sidewall pressure range is 35-85.
With those tires you have quite a range of pressures. My suggestion is to run them 70-80 PSI when the road conditions are good. This will make it easier to pedal but will make the ride a little less soft. When it's slick or snowy drop the pressures down to the 45-55 psi range like you have been doing. As long as you don't get a pinch flat on the rear it will not matter if the tire is ballooning a little bit. Experiment. In slick conditions lower pressure grabs a little better as long as it is not too low for the weight being carried.