The ATZs are starting to get a good rap.
[QUOTE=sibhs]I've got the 4 rib and love 'em, they look great and ride well on the road, they are more than capable offroad. I do 70% road and the rest sand, rock and mud.
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[QUOTE=geordie4x4]I am running the new pattern 4 rib ATZ and love them.
285x75/16" on 16x8" steel wheels, on my GU series 4 and on my camper trailer.
I put them on for a Kimberley trip last year and have been very impresed at everything they have done. We went up through Gibb River road to Mitchell Plateau, Port Warrander track was verry rough and another guy on skinny Olympic overlanders did four tyres in that section only two were repairable.
Went through the NT and down to Alice/Uluru then back to WA on the Gunbarrel and great central road. They have also been to Exmouth twice, out into the goldfields, playing in the mud near Harvey and Collie and on several soft sandy trips around the Warren river and dunes in the SW of WA.
They are a lot more agressive tread than the 5 rib pattern more like the Cooper ST. Not as noisy as the howling Procomp Xterrains that I took off.
Not a quiet as the standard low profile 17" rim factory rubber. So good on the road that I sold my factory wheels and tyres and just have the ATZ.
The back tyres have a few small tread chipps from the rough sharp rock roads of the Pilbarra and Kimberley but have worn very even. 35,000 km and have well over half the tread left. Start with very deep tread like 16mm or more.
They do take a bit more weight to ballance than the standard rubber but are much bigger and heavier (also on steel wheels could have something to do with this).
They only have a two ply sidewall (except for the Specialty sizes) but seem bloody tough and I have given the sidewalls a hiding on rock and sharp stone tracks where several others I travel with have had sidewall punctures.
Also prety good on wet roads so far. It dont get wet often in WA but when it does the roads are slippery. Far better than previous Cooper ST in the wet when they were down to half worn.
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[QUOTE=nab]I agree with the other fellas. I got 285/75/16s on my GU and they are excellent on the rocks, better than my old BFG muds on wet roads and much quieter (they are only 6-7000km old though). Haven't done much sand/mud so I can't comment there. And they look awesome on the 4x4!
I'm very happy with my choice. You won't regret the getting 4 rib![/QUOTE]