after market wheel tire pressure.

With aftermarket wheel /ttire combo's, tire pressures are typically trial and error. You could see if the manufacturer of either has a recomendation. but try going with a 28 - 30psi and see if that works. Watch the tire wear pattern and modifiy the pressures accordingly, more if you are wearing on the edges, less if it's in the middle.

really 28-30?? i have it at 40f and 45r psi right now. the recommended psi is 36f and 44r. i figured the less sidewall maybe a little more pressure would help, given the large wheels to prevent damage.

Dnr.

I've posted a few comments with respect to tyre pressures for your FFRR's and my suggestion is to run 44 psi all round ! Just check the sidewall markings if your size of rubber is "XL" (Extra Load) specified which could result in a safe lower pressure ?

Cheerio,


Vinniman
'88 Highline
Perth, W.A.

ndnrr said:

really 28-30?? i have it at 40f and 45r psi right now. the recommended psi is 36f and 44r. i figured the less sidewall maybe a little more pressure would help, given the large wheels to prevent damage.

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Quite possibly, but bear in mind, whatever tire pressure you put in, it will go UP as you run the tire and it starts getting hotter, even by as much as 3 or 4 psi
With a lower profile tire, more of the load will be imparted into the tire and the heat build up will be more localised over a smaller area. I would expect the psi to go up even more than the standard amount (maybe even as much as 6 or 7 psi.

any other input from ppl runnin' 22s on their rr???