Bill P.

My current Michelin Latitude Tour HP tires are 265/50/19. I have the 19" turbo wheel option. The Tire Rack page matches this wheel to the 265/50 tire.

The local tire shop I usually use says they are back ordered and no idea when they will come in. Recommends the 275/45/19s and says they are also a Porsche Cayenne tire. Tire rack shows this size as an OE tire. But OE didn't include optional turbo wheels which I have. Maybe it's no big deal but I thought I better check with you guys before buying!

Any issues going with this size (275/45/19)?

Thank you!!

kosmo

They will fit However The 275s will be about .68 inches shorter than the 265s.
Are 285/45 available?

Bill P.

Thanks for the feedback, kosmo.

By shorter do you mean lower? How will the 285/45 differ (shorter still?). I'll have to check on availability.

As an aside, what are the ramifications of being .68 shorter?

Thanks for the assist!!

endless_corners

See the 275 is the width and the 45 is height (45% of width )

So the diameter of the tire will be smaller. Which is why 285/45 was suggested to keep the diameter closer to stock. Usually if you are gonna fudge diameter its better to go larger rather than smaller than stock. Like for instance on 955/957 (perhaps 958 idk) the stock diameter is 29". The transyberria cayenne runs 32's... Some members go bigger for a better offroad tire with more sidewall. So if you are gonna deviate go taller and not shorter than oem.

http://www.tirerack.com/tires/tirete....jsp?techid=46

kosmo

yes, smaller diameter. the 285/45 will be about .33in shorter.

in theory, and shorter side wall will give you better handling but at the expense of ride quality.

BTW, i've always felt these tires are too narrow. I have 295s but on 21s.

kosmo

sorry to add to the confusion, but the 285s may be too wide for your rim. IIRC the turbo wheels are 8.5 in width so you'll prob have to go 265 or 275.

Bill P.

Got it, thanks for the math, kosmo.

endless_corners

Also if you are running smaller diameter your odometer will rack up slightly more miles than you actually travel given the increased revolutions. However it doesn't seem like a big enough difference to really sneeze at.