1915 Indian “Model E” 500 cc single Speed Racer By 1913 Indian was the largest motorcycle manufacturer in the world; the 1913 production was almost 32,000 machines. There were 2,000 dealers all over the world and Indian controlled some 42% of the domestic motorcycle market in the USA. This Model E single speed racing trim with racing handlebars, racing type saddle, foot-controlled clutch and Schebler carburettor. Output is some 7.5 HP.