165 R13 91/89R? That seems an odd size Nev? Look at this Hymer issued Tyre Pressure chart :-

https://files.homepagemodules.de/b614104/...n2_zPTBysJo.jpg

What is the size of your spare? It might still be original.


We have 185/70 R13 86T on our Troll Nev which are as per the original size. Out Troll is max. 1000kg hence the 86T rating.

We went through a similar situation as you this time last year when we needed to change our tyres. Another "Tyresome" Question...

Eventually we decided to stick with the original size. One thing we didn't realise until later however is that although you can shop around for different make tyres with the same tyre size, load and speed ratings, it doesn't mean that the max. tyre pressure ratings are the same.

Originally our van had Dunlop SP's with a 44psi max. tyre pressure rating but the Runway budget tyres that AL fritted only had a rating of 36psi. More by luck than judgement ( because I was unaware of these differences) The budget tyres we purchased last year have a max. pressure rating of 51psi.

Randa

As a 2006 Triton I would have thought you should at least have the same size tyres as ours Nev. Is it 1000kg or a 1200kg van? I'm rather surprised it only has 13" wheels.

Randa

Quote: hob wrote in post #1

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The ones on there now are Continental 165 R13 91/89R. Which is not an easy size to find the few I have found are described as commercial LT vehicles or light commercial in other words delivery van tyres.

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When choosing the load rating on caravan tyres, many caravan experts suggest that you shouldn't go with anything stiffer than half the load of the van x 10% as caravan suspension relies on tyre wall flexibility.

Therefore on a 1000 kg van you'd be looking for 500 x 10% = 550. See Tyre Load Index chart below:-

Tyre-Load-Index.jpg - Bild entfernt (keine Rechte)

According to the chart, you should be looking at something around 86 or 87.

However the tyre industry recommend that you should only load a tyre up to 90% of the load rating so you're back to square one

Randa

( now you see why I stuck to the size that was put on the van at new )

Quote: Randa france wrote in post #9

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When choosing the load rating on caravan tyres, many caravan experts suggest that you shouldn't go with anything stiffer than half the load of the van x 10% as caravan suspension relies on tyre wall flexibility.

Therefore on a 1000 kg van you'd be looking for 500 x 10% = 550. See Tyre Load Index chart below:-

Therefore, you should be looking at something around 86 or 87.

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This is where I got the information from:-

http://www.caravanclub.co.uk/media/10228...d-wheels-mo.pdf

Quote: hob wrote in post #10

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What confused me was there seemed to be a number missing?

Like 165 70 13 or 165 80 13

Normally I just take the car along and show them the wheels and they tell me what they have and I choose a quality option .............. but thats for cars

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Quote: hob wrote in post #14

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So I need 165/80R13. with correct load and speed ratings then?

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