Rim max PSI

mike-s wrote:

myredracer wrote:
Interestingly, the old Marathons according to GY could be run up to 75 mph if you added another 10 psi to the psi rating of the tire

Any ST tire can be run faster than the minimum speed rating of 65. Add 10 psi (without going over max pressure) and you can go to 75 mph. If you go further and reduce the load rating by 10%, they're good to 85 mph. That info is part of the TRA standard load/pressure tables.

Maybe GY has been the only ST tire maker that explicitly stated that you can go above 65 mph (when normally running at max psi rating) if you increase psi by 10 ? I've never heard of ST tire owners deciding they want to run faster than the max speed rating then go and check their load capacity rating vs their actual load and then intentionally raising psi so they can do it. I doubt the vast majority even look at their tire's load capacity ratings and know their actual TT's weight or even know they have a speed rating.