In 1949 an all-new motorcycle, with an overhead valve straight-twin engine, was called the Scout; it was enlarged and renamed the Warrior in 1950.

Between 2001 and 2003, the Indian Motorcycle Company of America, based in Gilroy, California, built a Scout model using proprietary engine and transmission parts.

[1] The geometry of the 101 Scout wheelbase, steering head angle and rear sub-frame were all adopted from the new Indian 401 model which was under development at the same time.

[8][3][9] The economic hardship of the Great Depression pushed Indian to the brink of bankruptcy, and the company was purchased by the DuPont family.

In 1931, it was decided to rationalize production by designing a new frame that, with some detail variations, would be used across their entire, new-for-1932 model range of Scout, Chief and Four.

[10] Thus the 101 Scout was discontinued, [11][9] as its unique chassis was as expensive to produce as the 74 cu in (1,210 cc) Chief, and therefore had a small profit margin.

[11] In 1940 the Sport Scout gained full-skirt fenders, a lower seat height and increased fork rake, and in 1941 Indian added plunger-style rear suspension.

[21] The 640-B, a military version of the Sport Scout, was tested by the US Army and used on bases within the United States, but was not shipped overseas.

Engineering work being done on a Model 647 Scout was abandoned in favor of developing a completely new line of lightweight single-cylinder and vertical-twin motorcycles.

[23] The 648, also called the "Big Base" Scout, was a homologation special built to qualify the type for racing; as such, it was sold primarily to motorcycle racers.

[28] Between 1962 and 1967, New Zealander Burt Munro used a modified 1920 Indian Scout to set flying mile land speed records at the Bonneville Salt Flats.

The Indian Motorcycle Company of America, based in Gilroy, California, built a Scout model from 2001 to 2003.

It is essentially identical to the Scout and uses the same frame, brakes and suspension, but has a smaller 999 cc (61.0 cu in) engine mated to a 5-speed gearbox with a blacked out design.