From 1991 onwards minimum weight for 500 cc GP racers was 130 kg so Yamaha concentrated for the 0WD3 on a new suspension system. This was designed together with Ohlins and called “CES”. It was an electric system with sensors measuring the suspension stroke, which was “translated” and fed-back to the suspension. The rider could adjust the system as well from the handlebars. Wayne Rainey won 6 GP’s with the 155 hp 0WD3 and his second World Championship. John Kocinski also won a GP, therefore Yamaha had another Manufacturers title as well. And Peter Goddard won the Japanese Championship, so it was a good year for Yamaha!

Yamaha 0WD3, 1991