Tyre Pressures

My 'new' twin axle Coachman has the tyre pressures on the weight plate ..... 35psi 

New tyres tomorrow on a 1450kg Bailey and they recommend 45psi

For anyone who doesn't have their van's handbook, there is a useful website here:

http://www.tyresafe.org/check-your-pressures/caravan-pressure-calculator/

Cheers

Bugs

For anyone who doesn't have their van's handbook, there is a useful website here:

http://www.tyresafe.org/check-your-pressures/caravan-pressure-calculator/

Cheers

Bugs

most large single axle vans have 65psi on tyres with a c after the size meaning commercial, most twin axle vans run between 45/50psi with similar rated tyres, remember a large van is weighing one and a half tons on two wheels which is why the pressurers are high, you must put that pressure in them they need it and is dangerous at a lower psi.

My Lunar Ariva GT (1998) also is supposed to run at 36 psi, which does seem very low to me; especially as it sits on R12 tyres! Alas the online calculators assume that caravans run on R13 or larger diameter. I have come across this formula on carvan chronicles https://caravanchronicles.com/guides/calculate-the-correct-tyre-pressure-for-your-caravan/ which makes some sense... and gives me a much higher pressure for my tyre! Might be worth a comparison with the tyre checker website, but at first glance it looks like the same formula!

I have a Coachman Amara (2 berth, single axle). Like yourself, I was suspicious of the 65psi quoted but checked with Coachman amongst other enquiries and sure enough it is the correct pressure.

Hi,

My Bailey single axle is 65 psi and this is not uncommon for caravan tyres, just make sure valve is in good order.

My Lunar Ariva GT (1998) also is supposed to run at 36 psi, which does seem very low to me; especially as it sits on R12 tyres! Alas the online calculators assume that caravans run on R13 or larger diameter. I have come across this formula on carvan chronicles https://caravanchronicles.com/guides/calculate-the-correct-tyre-pressure-for-your-caravan/ which makes some sense... and gives me a much higher pressure for my tyre! Might be worth a comparison with the tyre checker website, but at first glance it looks like the same formula!

Thanks for the  link Marksailor. The calculation came out at 54psi for my Lunar Ariva GTS. I'll inflate them from 36psi tomorrow and and see how the tyres sit in relation to tread contact because at the moment the tyres look very under inflated. We are on our second trip out this Thursday and taking the caravan to The Howard at Rosdale Abbey for a few nights and will let you know how it tows when we get back.

Cheers!
Nigel.
 

Let us know how you go- have raised our Ariva to 40. Also new tyres next week as current ones use the bonus load for capacity which isnt good- so going for properly sized ones!