Tyre change constantly

Every 3 months I am always having to change 2 tyres then the other 2 tyres on the next 3 months. 

I am carrying roughly 500kg

In a month I would roughly do a 150 miles

It is a Nissan Nv200

Bloody fed up of having to change them, is it normal changing them this often?? 

Your tyres are lasting 450 miles? Are you buying them off a tatter? I use Hankook or Continental and they last about 20,000 miles.

I was going through tyres every 6 months on my partner till i went to a different place and got van tyres on it. ( the other place we're just putting car tyres on)

Load bearing tyres?

solarpanelcleaningltd said:

Load bearing tyres?

Click to expand...

I think that's what they have put on mine now.

Was speaking to a friend, he had been the same with normal car, ended up being broken suspension, that the garage didnt identify was the problem.