A "pre-unit Triumph" is one whose engine and transmission are separate mechanical assemblies, connected by a primary drive similar to those found on the Harley-Davidson motors born roughly a half century before them. This "unit Triumph" is discernable from its older English brothers by virtue of a bottom end that houses the crankshaft and the tranmission in the same two-piece alloy housing. The look is more compact, like the engine in your old man's '77 Yamaha TT500, or perhaps the XR75 you rode as a kid.
All of the above is everything I know about this and practically every other Triumph chopper on the road today. It's not much, but I don't pretend to be an expert. I do like women, however, and I know a couple who would get pudding in their pants if I hauled their bony ass to the Olive Garden on this tidy British vixen.
This speedy little Triumph was built by Wayne Ahlquist. It is painted light blue, like the color of Viagra. And just like the little pill, this sexy blue number gives everyone who sees it a four-hour boner. If yours lasts longer than that, please consult a physician. ChopCult can not be held responsible for negative side effects.
For more information on the boner-inducing chopper porn they're making in New England, go here.