Thor (motorcycles)
Early American motorcycle brand active in the early 20th century.
Last updated November 4, 2026
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Overview
Thor motorcycles was an early American motorcycle brand introduced in 1907 by Aurora Automatic Machinery Company in Chicago. The company produced single-cylinder and V-twin motorcycles, notable in racing in the early 20th century. Production ceased around 1916.
Products and positioning
A performance brand in the early motorcycle market
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