20” Tyre Pressure

[RobertO2023]

Geometry and tyre pressures are the fundamental requirements for a good tyre life. If it was me the first thing I would do is get a full laser alignment done. If you can get the vehicle weighed noting overall weight and each axle weight with vehicle in the every day configuration.
Distribution of weight will be relative to tyre wear, so your pressures may need to be adjusted accordingly
I run 36psi all around increasing the rears to 40 psi when fully laden and towing a car transporter. You will definitely notice the difference in premium tyres such as Goodyear Michelin Bridgestone . 265 or 255 40 20s seem to be the best for my use. Good luck.

 

[BognorMotors]

Been running my 275/35/20s on original tyres that came with the van (full camper conversion) at the @BognorMotors recommended 40psi. Happy with the ride bearing mind it's a van with low profile tyres and I've not got the funds for a full suspension overhaul.

Tipped over 16,000 miles recently and the rear tyres have pretty much reached (possibly exceeded) their limits. Not complaining too much about the mileage covered compared to some of the horror stories above. The wear is broadly the same across the rear tyres with maybe a little more on the outer rather than the inner shoulders, so setup seems OK. Oddly the fronts are looking really good and still plenty of life left in them. So why have the rears been chewed up so much more quickly? Too much psi? Too little psi? Driving style? Something else? It's a T28, not a 4WD, so a little surprised by the major difference in tyre wear between the front (good) and rear (not so good). Any thoughts?

Will clearly be replacing the rears - currently cheapo "Thunder U09" tyres which I've never heard of previously - with something a bit more reputable. Can see the Goodyear F1s and Michelin PS4s are highly rated above, and Bridgestones maybe less so, but would welcome any other suggestions or recent experiences.

On the plus side, if I can stagger the tyre replacement so that I'm only replacing fronts or rears at any given time it will at least soften or spread out the blows to the bank balance!

We would recommend a full Hunter alignment and our recommended tyre pressure are between 36-40. So maybe drop to 36 and try from there.