Dirty they were made between 1988 and 1992
C&J in Fallbrook built them later became roll design Shoemaker did the tanks and air box Bill's pipe in Corona did the exhaust work.
I own one and it's a real unicorn it has a Quadzilla 500cc engine by Duncan in it ridiculously soft suspension that will eat up anything
With a 270 lb Rider on board
StraightLine performance absolutely mind-blowing you literally hydroplane over whoops
The very unique aspect of the bike was the A-Arms being angled back slightly... very similar geometry to a 250R it has Far More Travel and much lighter chassis
Someone can talk me through how to put up a link for a photo I'll throw one up and show you