Trailer tire pressure

[reb78]

Poor old OP only asked what his Ifor trailer tyre pressures should be. Several of us provided the chart from Ifor.

 

[Erie Fred]

Poor old OP only asked what his Ifor trailer tyre pressures should be. Several of us provided the chart from Ifor.

That makes too much common sense.....

 

[not done it yet]

That makes too much common sense.....

The lack of common sense is from those suggesting pressures that may well be outside the tyre parameters.

Under-inflation is likely more dangerous than over-inflation (by the same margin). For my car tyres I want them to wear evenly across the whole tread-width . If that means a small variation from the maker, so be it - but it will always remain well within the tyre specs. We (should) all know that rear tyre pressures are generally specced differently, by the car manufacturer, for different loading conditions - the heavier the load, the higher the pressure.

A-about-F comments do require some careful initial though logic application.

 

[Bravheart]

Poor old OP only asked what his Ifor trailer tyre pressures should be. Several of us provided the chart from Ifor.

The confusion started when the op mentioned "car tyre". It simply isn't a car tyre it's designed for many purposes and Ifor Williams chose it to be fitted to its small trailer probably in conjunction with one of the tyre manufacturers. I'm guessing the 'c' rating on the tyre has a big bearing on its specification.
Forget the laws of physics with this stick to the trailer manufacturers recommend tyre design for the trailer in question and the pressure from the charts.
The required tyre may look similar but will have different compounds, wires and wall thicknesses to the equivalent car tyre it won't be designed for comfort and grip while cornering or braking it will be designed to carry the stated load with little flex at the stated pressure to save overheating and failing at the required speeds.

 

[reb78]

The confusion started when the op mentioned "car tyre". It simply isn't a car tyre it's designed for many purposes and Ifor Williams chose it to be fitted to its small trailer probably in conjunction with one of the tyre manufacturers. I'm guessing the 'c' rating on the tyre has a big bearing on its specification.
Forget the laws of physics with this stick to the trailer manufacturers recommend tyre design for the trailer in question and the pressure from the charts.
The required tyre may look similar but will have different compounds, wires and wall thicknesses to the equivalent car tyre it won't be designed for comfort and grip while cornering or braking it will be designed to carry the stated load with little flex at the stated pressure to save overheating and failing at the required speeds.

All he said was the pressure seemed high compared to a car tyre. The unnecessary disastrous willy waggling argumentative my physics degree is better than yours tangents this place trails off into are amazing.

 

[Barking Mat]

2.5 bar, that's my go to on cars, vans and trailers, never had an issue.

Shoot me down folks.

 

[bricol]

2.5 bar, that's my go to on cars, vans and trailers, never had an issue.

Shoot me down folks.

Always found about 36 psi worked okay