Tyre pressures
- Thread starter Kane1234!
- Start date
Scottish Borders
G29 tyre pressure chart ?
Makes sense
Makes sense
Well had my GY Asym 5f and 6r at 35 psi last 2 days.
Softer, rides bouncy country lanes slightly better, but doesn't feel right, stiffer steering.
Had wheel slip on gritted road, but not normal conditions.
Have in past run at 42 rear but the crown of tyre worn more than the edges, so i think 40 max. for rears.
Still think Asy 3 was the best tyre.
Softer, rides bouncy country lanes slightly better, but doesn't feel right, stiffer steering.
Had wheel slip on gritted road, but not normal conditions.
Have in past run at 42 rear but the crown of tyre worn more than the edges, so i think 40 max. for rears.
Still think Asy 3 was the best tyre.
What model of Z4 MSport Mileage?
At the summit of the picturesque fens
Nonsense!B21 said:
Tyre pressures given on the door jamb are for THE CAR, given a certain size/ width of tyre, not the type of tyre. RFTs are no different to any other tyre, with the exception they have re-enforced sidewalls so they don't fall to pieces when driven punctured.
Tyre pressures are calculated to support the car's mass in the most efficient way.
If your statement were true, there would be a caveat by BMW to say they were only applicable to RFTs.
Pondrew said:
I trust you haven’t had a relapse and are on the pop again?
The door jamb inflation pressures refer to the tyres that were fitted AT THE TIME OF MANUFACTURE…and..as we all know there was only one tyre approval for the car at that time. The Bridgestone Potenza run flat…
However…since the car was not fitted with AI it doesn’t realise when you change make/size/brand/model/type of tyre…
However what you can do is look at a relevant example such as…the successor car..in this case the BMW G29 that was fitted with later tyres non run flat from Michelin and Continental…
So if we look at the latest advice from BMW for the 30i..a comparable car in terms of weight, power, powertrain, dynamics we can see that..lo..they have a different set of tyre pressures for the current generation of tyres and even in the same sizes..
So BMW..yes the manufacture states that for a 225 or 2 or in fact almost any other tyre 32 psi is the chosen number ..
Simples
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I assume from a flat tyre as soon as the weight is supported on a tyre that should be sufficient ( i think about 6psi for ton vehicle).
Anything above that is performance based and whatever to keep it on the rim.
I have yet to try the maximum marked on the tyre of 50psi!
Anything above that is performance based and whatever to keep it on the rim.
I have yet to try the maximum marked on the tyre of 50psi!