The Fattest

Hi Jeffrus

I'd say you need higher load rating rather than bigger volume. To get that, go for LT (light truck) tyres. Can't find any 13" LT, but there are hundreds of 14". Best bet might be to go for 14" rims and the tallest 14" LT tyres you can fit. I use Toyos on my trailer with no problems since I went to LT construction tyres.

Cheers
John

If you want to get into the rough stuff with a camper trailer built for on-road use, make sure the drawbar and chassis can cope with it. My trailer needed extensive modifications before it could cope with off-road use. I found this out the hard way when the A-frame broke off at 80 km/h on the Oodnadatta Track and the fully loaded trailer did cartwheels up the road. Pretty spectacular, but somewhat upsetting at the time!!

Cheers
John

Jeffrus,
What is the stud pattern? If Commodore or Falcon you can get 15" steel rims and then fit 215R15 off road tyres. I did this and gained 2" clearance at the axle. Does not make it an off-road camper but useful for that last 200m into secluded camp spots.
Rolande