New tyres load upgrade

First off, you won't do any harm by moving up to a higher load index number as it has a stronger sidewall. Secondly, going to a higher load index number of tyre will have no effect on the suspension though may be a slightly harsher ride. Thirdly, the manufacturer chooses a load index in relation to the axle loading and the importance is not to overload the caravan with that in mind.

You seem to have a smallish/lightish caravan with a load index of 86, but if a higher load index figure is more common in your size then they could be cheaper to purchase.

Phil what is your caravan and what is the max load? Going up a load rating is fine and you may to if 86 in the size you want are not available, but don't overdo it. 10% extra is usually a good guide.

Have you checked the tyresafe website. I keep a copy of the tyres, pressures & loads in our caravan. 

https://www.tyresafe.org/caravan-tyre-safety/load-and-inflation-tables/

Colin

Thank you for replying I've just returned from enquiring at ATS and they said the same the is no harm in upgrading load capacity of the tyres, I have no intention of carrying more weight just thinking it'd be safer fitting stronger tyres .

Thank you for your advice going to upgrade just for safety not to carry more weight .