On 26/06/18 10:45, NY wrote:
I think the only important thing is the the distance between the axle
and the point which touches the ground ("the effective radius", as some
people have called it) is constant as the tyre rotates - as indeed it
must be, otherwise you'd have a very bumpy ride :-) The radius at all
other points on the tyre which are not touching the ground is not
important.

100% wrong in every respect.


--
Theres a mighty big difference between good, sound reasons and reasons
that sound good.

Burton Hillis (William Vaughn, American columnist)