Scott Twin (1908-75)
And you thought the RD350LC was the first water-cooled two-stroke twin? Scott got there before World War One. The 500cc design cleaned up in racing, leading the ACU to handicap it by applying a capacity multiple of 1.32:1, which only made the bikes more desirable. Scott invented their own two-speed transmission and rotary valves to vary the inlet charge. They even worked out transfer porting before the war, an idea that MZ later picked up. In the mid/late 1930s Scott added a cylinder to make a 750cc triple and then another for a 1000cc four, but the start of WWII killed them off. There was even a one-off supercharged two-stroke racer, an engine format also used by DKW. Other people produced Scott designs after the firm went under in 1950, most notably George Silk who made a luxury 600cc twin with a Spondon frame. He only made a couple of dozen and production ended in 1975. What you’ll pay today £7000-£20,000 But should you? Only if you’re a Scott fiend – a Silk (above) is the simplest option.