Re: tire rating question
...I've blown them. Don't do it. Inflate to the pressure the rim is designed for, and no more...
Steel rim, or aluminum?
Show us a published max psi chart for rims... Tires have PSI ratings, other than some Aluminum and alloy rims, rims are rated max pounds of load. I am all for learning but I am unfamiliar with rim ratings of max tire psi. We are not talking about overpressuring or overloading tires here- just whether he can use a "D" tire instead of a "C".
Most of the probs with Aluminum rims (or alloy) are with the old cast rims from the sixties, or the older welded-rim steel wheels meant for tube tires. Machined aluminum or alloy wheels have the load and PSI data provided by the manufacturer.
Running the D tires at the C pressure doesn't raise any alarms for me as long as the load capacity is not exceeded.
I do get your point though- I do remember tire training during which we were warned about welded steel and cast alloy wheels and newer tires or low-profile tires which had greater PSI. and something about old cast-and-machined magnesium wheels getting brittle over time- like Halibrand mags. But I haven't heard that brought up in recent years.
My 2 cents, but I am not a lawyer either.
