The Most Dangerous Motorcycle Ever Made

I got a ride on the back of a Yamaha RD 350 - twin cylinder, water cooled, 2 stroke, and when it was accelerated into it's power band, it was kind of hard hanging on as a pillion..... since it was a street legal version of a racing bike..... Not sure how much difference there was between the street bike and the "real" racing bike...

The 500 Suzuki, is a four cylinder, and of a similar configuration - except the cylinders are 125cc, instead of 175cc, and there are four of them, and it's a pure balls out racing bike....