You can't miss a 400 4.

Whilst on mission 'easter bunny' today; I had very little cause to be
hooning down the Tanat valley on the trump.
A couple of 400 4's could be seen coming up the valley towards me; all
shiny chrome pipes gleaming in the distance.
The first was being ridden in a spirited fashion.
The only sound it made as it passed was like a bullet whizzing past your
ear.

--
Mark Roberts