Cooper ST MAXX - First Impressions

[Corigator Avid PP Poster! Find all posts View Profile Close Corigator]

Yes, Sunchaser, I have a 4cm lift. I noticed the rounding seems to match the offset lugs. Probably exposing the outside lugs more.

Here is a pic of a new tyre, followed by my worst worn one as explanation. I think the wear only goes in as far as the inset lugs.

[sunchaser Member Find all posts View Profile Close sunchaser]

Thanks mate, will have to keep investigating this one I think.....

[Corigator Avid PP Poster! Find all posts View Profile Close Corigator]

I edited my above post to show the wear on my worst tyre, just so we know what I'm talking about. I think its what I would expect at 40,000 km.

[sunchaser Member Find all posts View Profile Close sunchaser]

Ok so I think I've found the problem of wear on the outside only of my tyres.

For any one else who may have the same issue, it seems to be a camber issue. More specifically a "positive camber" from my 2" lift which means the wheels are tilted outwards slightly, hence causing prematiure wear on the outside of the tyres.

Will contact ARB at a future date and discuss adjusting camber correction pin by a couple of degrees towards a negative camber.

Cheers Gaz

[LeighW Avid PP Poster! Find all posts View Profile Close LeighW]

The person who installed the lift didn't do a front end alignment and adjust the camber etc?

[sunchaser Member Find all posts View Profile Close sunchaser]

Yep, or didn't quite adjust the camber pin quite enough

[sunchaser Member Find all posts View Profile Close sunchaser]

Well it's been another 8 months on since my last post about the wear on the outside of the Coopers tyres. I had the camber issue looked at and the tyres turned around on the rims. But that is no longer my main concern as a few months ago cracks have begun appearing on each sidewall just above the bead. So I can only assume that the new u beaut strengthened sidewalls have made the carcass so stiff that when you let the tyres down to go off road they no longer flex evenly along the side wall but mainly at the weakest point, being just above the bead.

I've done some reading and it looks like this is a common thing now with these tyres (Coopers st maxx), and that it is also happening with the new BFG's too.
looks like it's now down to Mickey Thompson atz p3. I've tried Mr Coopers, lord knows I've tried.....

[Rockhop Banned Find all posts View Profile Close Rockhop]

Gee wish I read this prior to buying a set
my first impression are loud for brand new
iv had MT that have been quiter

any chance you could post a photo and what did coopers have to say ?

[LeighW Avid PP Poster! Find all posts View Profile Close LeighW]

i haven't had this issues, tyres are around three years old, around 30000km and a lot of that at low pressures ie 26PSI and lower. Have also read
of a different brand with same issue but there was some debate that maybe wrong bead profile was used.

[sunchaser Member Find all posts View Profile Close sunchaser]

Here's a couple of pics for you. Haven't bothered with Coopers because I now what they'll say. Booked in for a new set of Mickey Thompson ATZ P3's. Will see how they go.......

[120D4D Avid PP Poster! Find all posts View Profile Close 120D4D]

Here's a couple of pics for you. Haven't bothered with Coopers because I now what they'll say. Booked in for a new set of Mickey Thompson ATZ P3's. Will see how they go.......

Same company and same factory, not sure what you have achieved with that change...

[Rockhop Banned Find all posts View Profile Close Rockhop]

The whole tyre pressure debate is a big one,
so according to coopers they recommended the 6psi rule for LT 4wd tyres ( on road use )

just an example using this rule on our 2.8 prado setup with all the typical accessories bull bar, winch, dual batts, underbody protection they are 28 psi cold

https://www.coopertires.com.au/media...-pressures.pdf

I usually drop straight to 18psi once in low range

[narrabeenjules Lurker Find all posts View Profile Close narrabeenjules]

Can anyone please advise what the road noise is like on Cooper A/T3 HD tyres, I'm looking to replace the original Dunlop Grandtreks for something tougher