Ok new on here have a M37S I'm running Michelins pilots on it. 245/40/20 stock. I've done proper tire rotation. Needing new ones soon. Will 255/45/20 fit? Have a great hookup on 2 I would throw on the rear? Would they fit ? I've heard they will and heard they won't. Anyone know
Thank you
255/45/20 fit
Re: 255/45/20 fit
They should physically fit fine. But it's about an inch taller so your speedometer will be off a small amount.
http://tire-size-conversion.com/tire-size-comparison/
http://tire-size-conversion.com/tire-size-comparison/
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szh
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Unfortunately, no longer a Nissan or Infiniti, but continuing here at NICO! - Location: San Jose, CA
Re: 255/45/20 fit
Ummm ... generic tire size calculators do not account for the actual rolling diameter (tires and sidewalls flex) and also the section width and profile, etc.
The actual section width and profile can be different from tire to tire and what may fit with one brand/model of tire may be difficult with another if it is a close contact situation!
Same exact tire size on different brands/models may have slightly different speed difference values depending on the sidewall flex, shape, etc.
So, it is always best to use turns per mile value (as reported on Tire Rack for example) to compare if you want more accurate info.
Or get a friendly tire place to do a test fit!
Z
The actual section width and profile can be different from tire to tire and what may fit with one brand/model of tire may be difficult with another if it is a close contact situation!
Same exact tire size on different brands/models may have slightly different speed difference values depending on the sidewall flex, shape, etc.
So, it is always best to use turns per mile value (as reported on Tire Rack for example) to compare if you want more accurate info.
Or get a friendly tire place to do a test fit!
Z
Re: 255/45/20 fit
All very true. With size differences this small that much research and/or a test fit is most likely overkill.
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Larz
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Re: 255/45/20 fit
When I went from 18's to 19's, my service (at Infiniti) told me something and I'd like some input. I was told that my M35 (2009) was designed for a maximum of 19-inch wheels and anything larger frequently causes pre-mature wear of axles, bearings, and brakes. Yet it seems many members here have 20's and I haven't read of these issues in either forum. What are your thoughts?
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ajheddings
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Re: 255/45/20 fit
Did you end up going with 255/45/20? I am considering doing the same and wondered what your experience has been if you did it. I expect the ride will be a little better than the 245/40/20s I have OK need Sport wheels.
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DFW2011M56S
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Re: 255/45/20 fit
I have 275/40R20s on the rear of my M56S. Only problem with them is you go a little faster than the speedo shows.
Re: 255/45/20 fit
Curious about putting this size on my rears. How do you like the look? Could u post a pic from an angle so I could see the profile, plus are u running spacers at all?DFW2011M56S wrote:I have 275/40R20s on the rear of my M56S. Only problem with them is you go a little faster than the speedo shows.