During my brief motocross career at age 9 in 1972, on a Yamaha Mini Enduro, the XR75 was the bane of my existence. Fathers that owned bike shops and installed cams on thier kids XR75's were on my hit list and I wished them dead. I was a pretty good little rider, but the XR75 just out motored me, every friccking time!
Most of Joey Dunlops victories were in the 125cc and 250cc two stroke classes, on Hondas and Yamahas. He also won many a TT on Four strokes, the VFR750R (aka RC30) the RC45 and last but not least the RC51. The RVF was an Japanese (RC30) endurance racer.
Yeah, I know....sometimes I go stand behind the tailpipe of Viffer in the garage, and I think....nahhhh....better not!!!:biggrin: