On 13/02/2019 19:46, Andy Bennet wrote:
On 13/02/2019 18:12, Robin wrote:
On 13/02/2019 17:57, NY wrote:
"Robin" wrote in message

depends on wheel/tyre of course but I was reckoning on tread going
from 8mm to 2mm on a tyre of around 180mm circumference.

Or of course misreckoning if others get different answers



What do you drive? A Dinky toy?

Oh bother.

Ah, I've found where I dropped it. Here it is:

0



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Robin
reply-to address is (intended to be) valid