Thread: 18 inch 3.0 wheels.

Originally Posted by Babs

Being able to see the KO2 and the Cooper ST Maxx side by side not fitted to a rim, cemented that I had made the right decision. The KO2 was definitely a lot thinner in the sidewall and was very flexible in the sidewall compared to the ST Maxx.

The Coopers are more thicker and stiffer in the sidewall.

Was the KO2 the same size?

No it was a different size, I didn't take much notice of the size, looked like a 16" or 17".
Regardless the thickness would still be the same throughout the KO2 range.

Gets back to the thickness of each ply.
BFG are 1,000 denier each ply, and they're a 3 ply tyre so thickness is 3,000 denier.

Cooper ST Maxx 1st ply is 2,000 denier 2nd ply is 2,000 denier and 3rd ply is 1,000 denier. So 3 plys with a total thickness of 5,000 denier.

I would not assume that they all have the same sidewalls as none of the 15" flotation sizes (30x9.5 etc) are listed as LT although all other rims diameters appear to be LT. Several smaller 16" sizes and 2 17" sizes have quite a low load rating so aren't likely to have the same sidewalls either.

Keeping in mind though, a sharp enough bit of quartz or long enough railway spike will go straight through no matter what the thickness is.

Found that out in June, damn rock went straight through a Wrangler MT, in the centre of the tread too.

When I discussed my Cooper tyre failures owner of tyre shop ( a Bob Jane Franchise) who is well respected locally told me he used to work for and sell Coopers. And that they had very stiff sidewalks. BUT comment was...if deflated and run at any speed the stiff sidewall gets very hot- which leads to cracking of sidewall and failure. Which is what occurred to mine. He commented that they had to replace a few new sets that failed in this manner. He advised to only run lower pressure if absolutely necessary, not go fast, and to re inflate as soon as conditions allowed, with hard sidewall tyres. I've now fitted TPMS the Bluetooth unit on sale at Autopro- works great and shows temperature as well which he reckoned was as if not more important than anything else

Originally Posted by Meccles

When I discussed my Cooper tyre failures owner of tyre shop ( a Bob Jane Franchise) who is well respected locally told me he used to work for and sell Coopers. And that they had very stiff sidewalks. BUT comment was...if deflated and run at any speed the stiff sidewall gets very hot- which leads to cracking of sidewall and failure. Which is what occurred to mine. He commented that they had to replace a few new sets that failed in this manner. He advised to only run lower pressure if absolutely necessary, not go fast, and to re inflate as soon as conditions allowed, with hard sidewall tyres. I've now fitted TPMS the Bluetooth unit on sale at Autopro- works great and shows temperature as well which he reckoned was as if not more important than anything else

Good feedback

What have people done to fit their centre caps on the GOE rims

Originally Posted by Babs

What have people done to fit their centre caps on the GOE rims

I know not very helpful to you but mine fitted to the GOE wheels perfectly. And I've only ever heard of people occasionally finding them too loose and needing a dab of silicon, so your situation is I think unusual.

Scott