I can only imagine what one would have been like with the 310cc stroker engine! We built them for Honda ATC90 trikes. XL175 head and barrel. Crankcase spaced apart by about 10mm and XL125 crank fitted. Big bore kit on the XL175 top end saw them as high as 310cc. I had a 250cc version, ran on Methanol to keep it cool, had a carb off a 750/4 on it. Used to tear the rims out of the tyres, which was a problem with the original ATC90 tyres as the rim was vulcanised to the tyre! Damn scary things, easy 60mph and no suspension. Scared me too much, I ended up building a few suspended trikes out of XL185S and XR250 bikes.
Bookmarks