"Rooney" <pvrooney@aol.com> wrote in message
news:qtbdt01370l5n7gnlnuarbaln2kn5o3ong@4ax.com...
> On Sat, 1 Jan 2005 11:18:14 -0000, "Huw"
> <hedydd[nospam]@tiscali.co.uk> wrote:
>
>>
>>"Rooney" <pvrooney@aol.com> wrote in message
>>news:a3vat0h57us0nmn63pbg954praou3bvv4b@4ax.com...
>>> How do you measure rim diameter - at its widest point (do-able with
>>> the tyre on), or inside the rims with the tyre off?
>>>
>>
>>At the widest point on the rim.
>>A 16.9/30 tyre is usually mounted on a 14'' wide rim and indeed this tyre
>>size used to be called a 14/30.
>>It is now sadly called a 420/85R30 but that is progress I suppose.
>>
>>Huw
>>
>
> I just found a site that says otherwise, Huw, and ditto for width (ie,
> don't count the lip).
Then 'otherwise' to what?
I ask because my documentation says 16" alloys,
> my tyres say 16, but rim to rim at the widest is nearer 17". The rim
> size in inches is still on my tyres, along with other info. I have
> 235/70 R16 105H, which tells it all.
>
Yes, 235mm wide, 70% profile, radial on 16'' diameter rims with a load
rating. It might also have a wear rating somewhere.
This size sounds like a common one for Series11 Discovery. In my experience
it is certainly the best width of tyre to suit a Discovery for most
occasions. Wide enough to grip while not being too wide such that it just
spins uselessly on slippery mud and grass.
Huw