a little while ago, a guy showed up at the shop and asked if we could take a look at his bike. The electrics urgently needed to be renewed and the bike had to be cleaned up a bit.
It turned out that it was a Harton. it's a Sportster engine in a Norton frame. Super lightweight, used on the tracks. Startbutton? egnition switch? no! for that they used an industrial battery key.
a lot of bolts are secured with steel wire, aluminum gas-and oiltank, fiberglas frontfender,...
Here you see the cleened up version: