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steved0x · 10-08-2015, 05:40 PM

I run 17"s on the track, 225/45/17 and 255/40/15. Stock sizes for Boxster in 18 are 225/40/18 and 265/35/18, not that much more rubber, and they are much more expensive.

In Hankook RS3, I can't really go any wider with 17's, and not really that much wider with 18's. Same with a tire like Nitto NT-01, can't get any wider in 17's and the wider 18's are way wider like for GT3 type.

I think Hoosiers and the like have more options for getting wider and custom wheels may support those wider widths.

For me it is mostly cost I think, way cheaper to run 17's.

Others may have some feedback and maybe there are more tires available that I don't know about

10-08-2015, 05:40 PM	#3
steved0x Registered User Join Date: Dec 2012 Location: FL Posts: 4,143	I run 17"s on the track, 225/45/17 and 255/40/15. Stock sizes for Boxster in 18 are 225/40/18 and 265/35/18, not that much more rubber, and they are much more expensive. In Hankook RS3, I can't really go any wider with 17's, and not really that much wider with 18's. Same with a tire like Nitto NT-01, can't get any wider in 17's and the wider 18's are way wider like for GT3 type. I think Hoosiers and the like have more options for getting wider and custom wheels may support those wider widths. For me it is mostly cost I think, way cheaper to run 17's. Others may have some feedback and maybe there are more tires available that I don't know about