On Sat, 23 Jun 2018 16:51:02 +0100, The Natural Philosopher
wrote:

snip


No, the world is full of stupid people pretending to be clever.

Oh the irony!

The 'effective rolling radius' is the circumference divided by 2 PI.

Trying to make a squashed dougnut into a circle doesnt really fit though.

Quite. Try measuring the circumference of something that isn't
circular.


Maybe there is some perceptible scrubbing going on.

Why should there be any significant scrubbing with say a 20%
lower pressure in the tyre ?

Excatly.

Exactly, there isn't.

And yet those that say that the radius has altered by 20% and
yet the circumferemce hasn't altered at all, have only one way to make
the RPM rise by the amount they say the radius has rteduced.

Yup.

Introduce
tyre scrub.]

Nope.

It's like climate change all over again.
Facts dont fit the theory, so introduce 'feeedback'

Bwhahaha.

Look into how the steel wire is laid in a steel belted radial tyre and
check out 'pantographing'.

Cheers, T i m