Road to race RD500LC style!
In the late 1980s there were international motorcycle racing classes called Formula 1, Formula 2 and Formula 3.
F3 was basically 250cc two-strokes, F2 350cc two-strokes and F1 was 1000cc four-strokes and 500cc two-strokes. There were basic rules which said that the engines must be based on road bike engines.
When it became a European Championship I was approached by one of the top racers, Geoff Johnson, to build a race 350 YPVS engine for the F2 class and an F1 engine based on the RD500 engine. Harris Performance supplied both of the rolling chassis. regular Steve
