The success of Honda's four-cylinder CB750 made it inevitable that the other major Japanese manufacturers would follow suit, Suzuki's offering, the GS750, arriving in 1976. Within a short time, there was a 1,000cc version: the GS1000. The latter arrived in the UK for the 1978 season, vying with Kawasaki's Z1000 for the 'top sportsbike' crown. "The GS1000 provides the silky smoothness synonymous with most across-the-frame fours, an incredible amount of torque which reduces gearchanging to a minimum plus devastating performance," reported Bike. 'Devastating performance' amounted to a sub-12s standing quarter-mile time and a top speed in excess of 135mph - good enough to beat the Kwacker in a straight line - while air forks at the front and rear suspension units adjustable for damping as well as spring pre-load made for superior handling when pressing on.

Historically significant as Suzuki's first one-litre multi, the GS1000 is today one of the most collectible of early Suzuki four-strokes. It was also a highly capable production racer in its day, particularly the Yoshimura-entered examples ridden by Wes Cooley in the AMA Superbike Championship. Cooley won the Championship in 1979 and 1980, and the factory cashed in on his success by introducing the 'Wes Cooley Replica', as seen here. Described by the vendor as in generally excellent condition, this example was imported earlier this year and last ran in May. The machine is offered with NOVA confirmation.