Following the 250A1 and 350A7, the fastest challenger has arrived!!
In 1966, the 250cc A1 Samurai surpassed the performance of the Honda CB72, Yamaha YDS3, and Suzuki T20 that preceded it, and then the bore-up 338cc A7 Avenger brandished an even higher performance image, but Kawasaki was planning to release an incredibly fast machine.
It was a super-fast monster machine that could run from 0 to 400m in 12 seconds, on par with a racing machine.
By adding another cylinder to the 338cc A7, it was a 3-cylinder 500cc, and they thought it would be possible to achieve their goal of 200km/h.
However, when they actually started working on it, they found that there were many obstacles standing in their way.
Although another cylinder was added to the left side of the A7's engine, this was the first three-cylinder with a 120° crankshaft, and although it had an ideal layout with no vibration, repeated sudden hyper acceleration caused the pins that determined the crank fitting angle for each cylinder to break and turn, and at high RPMs it was plagued by secondary vibrations, so longer fins were added to the grip rubber on the handlebars to reduce the strain on the palms of the hands.
Original Source [ RIDE HI ]
