Question on wheel psi rating
I'm looking to increase the weight capacity of my tires which are currently Rainier ST205/75R14C with a capacity of 1760 lbs. The wheels are rated at 2200 lbs. @ 60psi; Sendel T09-C2 / J1204 wheels. ...
Forum Discussion
I have spent considerable time trying to figure out why wheels do not routinely have max load and max inflation pressure stamped on them. Because wheels is not my area of expertise (tires are!), I have tried to find folks who are knowledgeable on the subject - which can be a bit of trick trying to sort out who are experts and who just have strong opinions.
- BUT -
It is my understanding that there is no regulations for wheels to have load and/or inflation pressure maximums stamped on them.
It is also my understanding that it is the LOAD on the wheel that is important and not the inflation pressure.
And that the loading on a wheel is generally limited by the bolt hole configuration, so there is no need to stamp the wheel as the bolt hole configuration is enough to limit what vehicle it goes on and what type of tire goes on it.
So I am of the opinion that the only area where people need to worry about is where the powered vehicle is re-engineered and on trailers where the trailer manufacturers haven't done a good job of sizing the wheels/tires (a common problem for trailers!)
- and that given the choice between using a higher pressure in a tire to get more load carrying capacity (and thereby reducing the risk of a tire failure) and exceeding the stamped wheel limitations for pressure, the former is preferable over the latter (keeping in mind it would be best if both were possible!).
- BUT -
It is my understanding that there is no regulations for wheels to have load and/or inflation pressure maximums stamped on them.
It is also my understanding that it is the LOAD on the wheel that is important and not the inflation pressure.
And that the loading on a wheel is generally limited by the bolt hole configuration, so there is no need to stamp the wheel as the bolt hole configuration is enough to limit what vehicle it goes on and what type of tire goes on it.
So I am of the opinion that the only area where people need to worry about is where the powered vehicle is re-engineered and on trailers where the trailer manufacturers haven't done a good job of sizing the wheels/tires (a common problem for trailers!)
- and that given the choice between using a higher pressure in a tire to get more load carrying capacity (and thereby reducing the risk of a tire failure) and exceeding the stamped wheel limitations for pressure, the former is preferable over the latter (keeping in mind it would be best if both were possible!).
