Thread: Cooper LTZ Zion issues?

The LTZ 275/45R20's on a family members RRS haven't cracked into the casing, but are showing crazing through the tread-blocks. Worst on the fronts.

These are tyres ~1.5 years old. Not quite 50,000km and almost no offroad use.
I have almost identical cracks on some Michelin XPC here, but they are ~15 years old.

We had a similar experience with our Cooper Tyres also, mine were STs/ST-Cs and STTs, on our old D2, I personally don't think they are a very good tyre and they certainly don't like the rough stuff.

Baz.

we recently threw the tread on a Cooper discovery tire 245/70/R!6, around 10,000 km left on it at a guess. Tyre stayed up, but it ripped out our fuel filler pipe--fixed, and it also broke a tail light. This tire had cracking in side wall near the rim but that is not where this tire failed--the tread pulled away. Not sure I would get Coopers again. Oh but the tire did not go flat so we got to where we could pull of the road which was Tar.

Certainly this is a different Cooper to yours.

The bottom line is, as said,why can LR not provide 18" wheels for these vehicles?

Or even better,design them for 17" as an option,but also capable of running 19" or 20' for those that want them.

There are many other vehicles around the same weight and power that run 17"s.

The tyre guys must love those easily damaged,high wearing low profile tyres.

Originally Posted by scarry

The bottom line is, as said,why can LR not provide 18" wheels for these vehicles?

Or even better,design them for 17" as an option,but also capable of running 19" or 20' for those that want them.

There are many other vehicles around the same weight and power that run 17"s.

The tyre guys must love those easily damaged,high wearing low profile tyres.

Tyres cracking isn't landrovers problem.

Originally Posted by scarry

The bottom line is, as said,why can LR not provide 18" wheels for these vehicles?

Or even better,design them for 17" as an option,but also capable of running 19" or 20' for those that want them.

Let's be honest with ourselves here; how many Discos actually go off-road? I'd hazard a guess, and say very few.

Each different tyre means inventory.

The trend now for on-road prestige vehicles is low profile tyres.

Ergo they stock what is commonly sold, and don't bother with what they don't sell in any volume.

Originally Posted by phl

Let's be honest with ourselves here; how many Discos actually go off-road? I'd hazard a guess, and say very few.

Each different tyre means inventory.

The trend now for on-road prestige vehicles is low profile tyres.

Ergo they stock what is commonly sold, and don't bother with what they don't sell in any volume.

You're forgetting speed rating. Vehicles have to come out with rubber which meets or exceeds the vehicles top-speed.
Back in RRC days the rpm was limited on the EFI engines to keep the top-speed just within the rating of the tyres they had then.

The SDV6 is a modest 180km/h. The V8 D4 is 195km/h. Almost all the Sports can top 200km/h.

You can't honestly expect 300mm disc brakes and 16" wheels on a chassis that does that.

Originally Posted by phl

Let's be honest with ourselves here; how many Discos actually go off-road? I'd hazard a guess, and say very few. Each different tyre means inventory. The trend now for on-road prestige vehicles is low profile tyres. Ergo they stock what is commonly sold, and don't bother with what they don't sell in any volume.

I do...every possible opportunity. Rocks, sand, crappy dirt tracks....and even mud.
My Coopers don't get an easy life.
No issues with Coopers after 13 years.

Brett....