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I have a set of 19 x 7.5" with +35mm offset. Can anyone tell me what are the biggest tires I can put on these rims to use with my bone stock GS300 suspension?
Right now I'm considering 225/40/R19. If I could go with something bigger/more sidewall without it rubbing, I wouldn't mind it. I'd like to keep as much ride quality as possible.
Note: For those gasping at the audacity of 19" rims on a stock car: I plan to drop about an inch in the future, but for now I just need to get these on since my stock rims and tires are completely shot!
These are the rims for reference: 2010 RX350 19" wheels:
You could do 235/40-19. If you had wider wheels, 245/40 is doable as a chunky setup. It's "too big" as it's larger than the largest factory size by several mm, but it would fit since your wheel specs and intended drop are mild. I have 235/40-18 (correct size for the car) and can't say I have any complaints about ride quality. It's really not a big difference from stock.
Wouldn't have recommended 19" wheels in the first place, if you're so concerned about ride quality (since you could do a 245/40 on an 18 and stay within spec), but if you're set on that diameter, it's still doable.
It looks like you selected the best size to be as to close to oem specs but if you wanted to go with a wider tire and okay with a higher marginal difference then it'll let you know.