Tires
04-29-21, 03:14 PM
#16
Lexus Test Driver
Interesting, I wouldn't have thought the diameter would change that much from 275 to 285. Also interestingly, I see tirerack have 275/35/19 available now? Maybe I'll just go with that then.
https://m.tirerack.com/tires/tires.j...S3PL&tab=Sizes
https://m.tirerack.com/tires/tires.j...S3PL&tab=Sizes
Rest of what I wrote, you can disregard that since that was only PS4S related especially regarding the shoulder blocks etc.
04-29-21, 03:25 PM
#17
Have you guys tried 285/35/19 on the rear on stock suspension and wheels? Mine came with mismatched tires with PS A/S 3+ in the front and Primacy 3 in the back. They're all very new, but obviously the rears will wear out much, much faster. I don't really like mismatched tires and I'll be driving in a lot of colder conditions so I'm thinking about replacing the rears with PS A/S 3+ as well. They don't have 275s but do have 285s, so I'm wondering how well they'd fit.
I think you'll be fine with 285/35/19. Tire diamter increase is only 0.3", side wall increase is 0.1" and only +2.6%. Speedo error is only 0.8 mph at 70mph and 1mph at 90mph, pretty negligible difference.
04-29-21, 05:08 PM
#18
Lexus Test Driver
Overall circumference goes up by almost 1 inch like I stated above, which is pretty significant.
04-29-21, 06:52 PM
#19
BTW you originally said Diameter goes up by 1 inch, not circumference. Diameter only increases .3”
06-11-21, 02:55 AM
#20
So I'm more looking at the PS A/S 4 now, seems like it would provide the best solution to a moderate climate year round daily driver like mine. According to this link, there should be 46 more sizes coming out by July. Hope there'll be something that fits the RC F's stock wheels!
https://michelinmedia.com/pages/blog...ticle/c0/a990/
https://michelinmedia.com/pages/blog...ticle/c0/a990/
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