YAMAHA RZ250 1980 ( 1991 - NOW )
RZ are called RD250LC in Eulope.
In Japan, RZ250 is called "400 killer"
And RZ350 is called "750 killer"
Here is RZ's engine.
369cc ( Now 269cc. Cause melted piston..), MIKUNI TMX30
carburators.
Over 57 PS at rear tire ( measured by BOSCH dynamo. )
FZR250R's Alminium swingarm, R1-Z's rims...etc.