i wasnt sure where this post belonged so here it is!
im after 2 165/70/13 trailer tyres but im not sure i want to pay £50 each for them
the ones on my trailer are in good order but they are standard car tyres and seem to sag somewhat with the indy aboard
please help me

I have a Clio wheels on mine with 35psi in them, no sagging.

They are the same load rating as the trailer ones i took off (perished) Having the same load rating was the key factor for me.

Steve

basically my trailer is on 175 65 13 tyres which the previous owner "had kicking about"
they rub on the trailer sides and are too wide for the rim so i tried a 165/70/13 and they fit a treat
might head to a local tyre place if nothing appears on here as the olde vauxhall heap needs 4 tyres as well

[Edited on 16/7/08 by eccsmk]

Google car tyres, this came up http://www.tyre-shopper.co.uk/ts/search/SizeSearch.aspx
165/70 13 £30 fitted

Mike

The correct answer is that you need trailer tyres with the correct ply and load rating.
However, all my trailer tyres are normal car tyres. A bit of sag is good as they take some of the thump if you hit a pot hole!
I've tried running them at 50psi to lose the sag but it just makes the whole outfit as bouncy as a toddler full of red bull.

i bought light truck tyres for mine, about £35 each off tinternet. Similar size to yours.

Was just going to suggest some Van tyres.. something thats a common size like for Renault Kangoos.

I think there 165's and they have reinforced sidewalls, no doubt to take the extra weight and stop them sagging.

Can't see them being that expencive if there so common.

[Edited on 16/7/08 by MkIndy7]

The side walls don't carry the load - Tyre engineers will tell you it is the air carries the load -- by air they mean pressure and volume. ie 175/60x13 tyre will carry less load than a 175x13" at the same pressure, to carry more load on the same size tyre increase the pressure.

Commercial vehicles use 6 ply tyres because the extra plies in the side wall enable the side wall to ressist the higher pressure these tyres normally run at. The plies themselves don't support the sidewall.

Trailer and commercial vehicle tyres should be run much higher pressure than car tyres ---

Marked on the side wall of any tyre you will find the max rated load and pressure of the tyre (although it usually states USA & Canda only) --- for a car tyre it might be something like 750kg 49psi.

I would typically use 40psi when laden ---- although reduce this to about 25 psi when unladen to stop the trailler skipping all over the road.





[Edited on 16/7/08 by britishtrident]

thanks folks ill be going to the local tyre companytomorrow for a price on van tyres
once again thank you

quote:

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Originally posted by eccsmk
thanks folks ill be going to the local tyre companytomorrow for a price on van tyres
once again thank you
[/quo]

You don't need them just put the pressure up !

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eccsmk - 18/7/08 at 12:51 PM

well when the tyre says max 50 psi and ive already got 60 in them i was getting worried so new fandango super duper tyres here we come
and the tyres cost the same as i paid for the trailer !!

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NS Dev - 20/7/08 at 06:08 PM

how much does the indy and trailer weigh???????????????

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Peteff - 21/7/08 at 08:33 AM

One or two people I know have had trailer tyres from agri tyres.. They do van tyres etc.

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eccsmk - 21/7/08 at 09:04 PM

i bought 2 maxxis tyres rated at 650kg each

jobs a good un

thanks for the help folks

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