On Sun, 24 Jun 2018 07:12:45 +1000, cantankerous geezer Rot Speed blabbered,
again:


Not if you have any understanding of mechanics. The whole tread,
up to and including a caterpillar track, goes round once per
revolution of the track or tyre.

Surely the circumference changes because the area in contact with the
road is a chord and not an arc.

Nope,

I KNEW it! LMAO

--
Sqwertz to Rot Speed:
"This is just a hunch, but I'm betting you're kinda an argumentative
asshole.
MID: