[Pete W]

Hey All

Apologies for what must be the millionth tyre pressure question thread, I have had a google around for an answer to my specific question but no joy so afraid that I going to have to ask.

I have a R58 (coupe) which is currently sat on 205/45/R17 non run flat tyres. The factory spec for my car when it was sat of run-flats was 2.8 bar, or 41 psi (as per the door sticker and owners manual). 41 psi seems like an awfully high number to me for non run-flats, I would have though somewhere in the 33-35 range would be more normal.

I don't suppose anyone can offer some insight for the tyre pressures on a R58 coupe with 205/45/17 non run-flats can they?

 

[cristo]

I would go for 36-38 with a light to normal load, . . .
or 40 if you’re loaded up with heavy or numerous
passengers and/or luggage.

 

[Mid Life Mini]

I had an R59 until recently and asked the very same question when I got it in 2015 as that seemed awfully high, I’m sure it was much lower on my previous R57 that was running on the same tyres, 205/45 17. There were lots of opinions but I went with the number on the door sticker, they built the car so my thinking is that they must be right.

 

[knt]

By no means the definite answer, but good read

https://blog.tirerack.com/blog/make...ing-from-run-flat-tires-to-non-run-flat-tires

Michelin list 2.7 bar fronts and rears for runflats and non runflats tyres

https://www.michelin.co.uk/auto/bro...cooper-works/2009/1.6 T 211/205---45 R17 84 W