Originally Posted by
Psimet2001
No. The listings on the sidewall are a different topic...
In general though if you find that you are having to ride around the limits of the tire then it is due to your weight. You should be riding a larger volume tire if you are too heavy...
Ok so the equation is more about ride quality/effectiveness, I thought it was a calculation derating the maximum PSI due to the weight of the rider. I'm 175 lbs riding 27's, I'll just keep filling my tires to a bit below the sidewall max written on my tire (90 PSI) which is close to what I calculated using the equation.
Thanks for clearing that up.