wheel size and tyre pressure

[DazzyA]

Just seen in the bentley that the recommended wheel sizes seem different from handbook.
Also would tyre pressure be the same on all size tyres?

[MONSPORT42]

Haven't got a Bentley so can't comment. If you have standard suspension and standard wheels , the factory recommendations as per handbook or the sticker on the drivers door frame are usually OK. Once you start changing anything - springs, shocks, bushes, wheels or tyres - then in my experience it comes down to trial and error to find pressures that suit your driving style, comfort and wear needs. Tyre pressures are an integral part of the overall handling package and can make a big difference to enjoyment, so it's worth the effort to get it right. I'm currently running 16" Alpinas with the wider rears and different profiles + uprated suspension and bushes. After many trips to the garage airline I've settled on 2.3 bar front and 2.2 bar rear for everyday use.

[kam-325i]

Im running on 16" Compo AT's, 205/50/16's and set the air pressure to 30Psi allround, any more and i start to get understeer/Very light steering..

[aus325]

30-32psi is probably good for comfortable driving. Up to around 34-36 will be slightly less comfortable over the bumps, but improved steering response. But as mentioned, trial and error. Check your tyres regularly for any uneven wear across the tread.