Tyre sizes

[100SRV]

Looking at the 16" rim options for the BF Goodrich KM3 I noticed that it is available as:

7.50 100 R 16
235/85 R 16

Which as I understand are pretty much the same rolling radius.

Why would two similar sizes be offered - both are radial ply so it can't be that.

[100SRV]

camel_landy said:

IIRC - It's to do with the width... I believe the 7.50 will be a touch narrower.

M

I thought the same, still a funny thing to do but guess it is good for older non-PAS vehicles like Series Land-Rovers and Jeeps.

[100SRV]

camel_landy said:

100SRV said:

I thought the same, still a funny thing to do but guess it is good for older non-PAS vehicles like Series Land-Rovers and Jeeps.

It's also why the XZLs on my 110 are 7.50R16 XZLs, instead of 235/85R16 (ie narrower).

M

Different tread pattern too wth the two XZL sizes, 7.5 has single centre blocks and 235 twin.

[100SRV]

Had a set of 7.5 R 16 XZLs on 5.5" Land-Rover rims, can't think why but they were sold to a friend who had an 86" so my Dad's 88" now has 235/85R16 XZLs on the Defender HD rims. I'll ask the guy with the 86" to measure the width at the tread face of the 7.5 tyres so we've got some facts. The 7.5" wide ones only had three lugs across the tread face, the 235's having four.

Here it is on the 235s, I'll see if I can find one of in on the 7.5s

Edited by 100SRV on Monday 4th April 17:31