By 1985 Bob Brown's very successful TT2
based Pantah was approaching the end of its development. Bob and
engineering student Darren Andrew Smith (who used it as his thesis)
designed & constructed from scratch a set of DOHC 4-valve heads.
Conceived from the outset for possible street use, the heads were
designed to be fitted to a standard Pantah motor and frame with a
minimum of fuss - wider belts & pulleys and a raising the barrels by
5mm being only requirements. There were teething problems with the
4-valves heads however so 2-valve heads were substituted after a time
(as seen here). Original Tingate monocoque frame and swingarm. The fuel
is pumped from the lower frame sections via two diaphragm pumps (pulsed
from the exhaust) to the built in header tank behind the steering stem,
then by gravity to the carbs. The front guard design predates that of
the KR500 or BMW K1. Photographed near Barlcelona, Spain. 2015. Can
Costa Foundation collection.