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Old 03 July 2009, 14:52   #1
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Tyre pressure?

What tyre pressure should there be on the RIB trailer wheels?

It is a RM trailer with a 5m Torndao- total weight of the trailer + rib etc is approx 750-1000kg.

The tyres are new and are 175 R 13 .

First RIB so no idea really!

Thanks
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Old 03 July 2009, 15:46   #2
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i guess you need to know the exact weight on the axle to work out what the pressure should be, i wonder is tyre manufactures do load/pressure graphs?
i always run mine at the pressure the tyre load carrying is rated at. my thinking behind this there is less tyre flex hence less heating, therefore less chance of a blowout. i think its 36psi for my tyres.
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Old 05 July 2009, 03:40   #3
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http://www.ntta.co.uk/law/trailers/load_pressure.htm
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Old 05 July 2009, 03:49   #4
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my 4.8 comes in at under 650kg if I remember correctly. Have you had your rig on a weigh bridge?
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Old 05 July 2009, 04:23   #5
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No- havent had the rig on a weighbridge yet. On the list of things to do.

Only reason I assume it's heavier than average is due to internal fuel tank of 60l, a 50hp 4stroke yam on the back, twin jockey seats and a very substantial RM trailer with overbars the original owner used to carry dinghies on top.

Thanks for advice
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