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fins	08-24-2016 02:17 PM

Question

If I move my rear 245/45-18 tires to the front, what recommended size rear tire replacements should I get?

SlyZGuy

08-24-2016 08:35 PM

275/40/18 would be exact same diameteras would 315/35/18 but they don't necessarily need to be exact. I would probably go 285

Check here for reference: https://tiresize.com/comparison/

fins	08-24-2016 09:03 PM

Thx, Sly, for helping out this noob:tup::tup::tup:

fins	08-24-2016 09:48 PM

another question. The rear stockers are 245/45R-18 while your recommendation is 275/40ZR-18. That's the only Potenza RE050A available in the 275. Is the difference in R vs. ZR negligible?

POS VETT

08-25-2016 05:57 AM

The "Z" is speed rating, it has nothing to do with OD.

fins	08-25-2016 06:31 AM

Quote:

Originally Posted by POS VETT (Post 3543557)

The "Z" is speed rating, it has nothing to do with OD.

Actually the 275 tire is Y rated while the 245 is W. Is it ok to mix?

POS VETT

08-25-2016 05:39 PM

Are you planning to drive it beyond 168 mph for a sustained amount of time?

SlyZGuy

08-25-2016 07:00 PM

:iagree: this!

fins	08-28-2016 05:25 PM

Quote:

Originally Posted by POS VETT (Post 3543881)

Are you planning to drive it beyond 168 mph for a sustained amount of time?

:tup:

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