Well It's not new but for me It's new and I'll be honest, I'm confused.

We used to always state our tyre sizes as 33" x 10 1/2" x 15"

Now I'm seeing 285/65/r16 (assuming r16 = Rim size 16") (285mm is tyre width???) Whats the 65 for???

So we are now mixing imperial with metric are we?

Sorry for the basic question for most of you but for an old bloke It's confusing as hell. haha

Thanks for your replies, just curious?

Muzza