tubeless tyre pressures for a series

I've put 7.50 x R16 michelin tubeless tyres on a set of 90 rims on my 2A 88". What tyre pressures should I use? 25 all round by the series book would have been for tubed.. 27F / 38R is what I find advised for Defenders from 1983 onwards. Do they weigh very different? Do I want the rear that high if I'm not much laden?

Definitely tubeless rims?

If the centre of the tyre touches the ground more than the edges. Deflate. Conversely, inflate.

scottonthefen said:

I've put 7.50 x R16 michelin tubeless tyres on a set of 90 rims on my 2A 88". What tyre pressures should I use? 25 all round by the series book would have been for tubed.. 27F / 38R is what I find advised for Defenders from 1983 onwards. Do they weigh very different? Do I want the rear that high if I'm not much laden?

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Doubt if you will run into any problems with 30Psi all round. If you are going to put a couple of engines in the back, maybe put the rears up to 34.

I used to run my Ninety tyres at 30Psi all round, unless I was towing, in which case I pumped the rears up, never had any problems doing that.

As TB says above you cant go wrong with 30.

If you want to get really anal about it then make a wide chalk line across the tread on each tyre and drive dead straight on a perfectly flat even surface (car park for example) after a short distance have a look at the chalk mark, scrubbed off in the middle only = deflate. Scrubbed off evenly across = just right

or save the faff and go for 28-30psi all round

I run the Michelin ZXL 7.50 /16 on defender rims (running tubeless). I run 33 PSI all round.
Modern tyres are much more grippy and radials squish quite a bit - especially fronts with engine weight so I find the steering a bit more responsive running harder pressures. Hopefully kinder to the drive shafts too.

I go for 30psi all round, but keep an eye on uneven wear