Tyre sizes and your recommendations!!

These tyre you talk about , are they much bigger than 255/8r16 M/T's in rolling circumference?? Really noticeable?

255/85/16 are 33" the 9/34 are just over 34"
They are only one inch but you do notice it.
The difference seems to be expotentially incremental as you go up.

Why not try to borrow some, fit them and see. Might cost you fitting charges but you'll know.

Thanks for that. Just the kind of real world comparison I was looking for.

Cheers

not hijacking at all. I actually ran Cooper ATR in 285/75r16's and although I got 65000km out of them , they were significantly chipped from gravel roads and with still about 50% of the tread left, i lost the two rear's withcracks around the bead and they both completely failed. Cooper's rep said from towing heavy trailers (too much flexing with width), which I do. Good tyre on tar roads, but not for gravel. They chip too easily (IMHO too hard a compound.) . I did find that the 285's gave a slightly " ship type" ride, meaning the car swayed around a lot more, hence this is gone now I have gone back to 255's. Now the car rides so much better, and also with the longer footprint. Mud terrains in my opinion are noisier, but only notice when window is down driving through town. They were extremely noisy at first, however now with 15000km's on them they have quitened down significantly. Very happy with the wear rate so far. We run BFG M/T 265/75r16 on RV cruiser ute and get great mileage out of them (60-70000km), considering the roads we travel. Another cruiser ute runs Cooper tyres (has had both ST-C and STT), and hasn't got anywhere near the same wear ( I think his right foot might be heavier though).BFG M/T would be my choice for off- road tyres as they wear well and don't chip as easily. The noise is noticeable at first, but does fade and is certainly not irritating. You may also encounter a slight increase in fuel consumption by, 1. going wider and 2. switching to M/T pattern. We run ours on about 70% tar ,30% gravel (very coarse & cutting) and they wear pretty well. Great tyres IMO , I'd just be thinking about the width though. Wider tyres have a tendency of getting more punctures due to the wider surface area and picking up more objects. For a better ride 265/75r16 would suit however rolling diameter is less therefore speedo slightly out. I found with 285's my speedo ran almost true to gps. I love the ride of the 255/85r16's, but they only come in BFG M/T or Cooper ST. I wouldn't have the latter as they chip. This is just my opinion and thoughts . Hope it is of value to you.
Keep it real!!
Regards Kirsten