KTM Sportmotorcycle AG is an Austrian motorcycle, bicycle and moped manufacturer. The company was founded in 1934 by engineer Hans Trunkenpolz  in Mattighofen. It started out as a metal working shop and was named Kraftfahrzeuge Trunkenpolz Mattighofen. In 1954 KTM began producing motorcycles.
KTM is most commonly known for its off road motorcycles though in recent years it has expanded into street motorcycle production.
The company was founded in 1934 by engineer Hans Trunkenpolz  in Mattighofen. It started out as a metalworking shop and was named Kraftfahrzeug Trunkenpolz Mattighofen. It wasn't until 1953 that KTM began production of motorcycles. With just 20 employees, motorcycles were built at the rate of three per day. In 1955, a businessman Ernst Kronreif became shareholder of the company, on acquiring a sizable portion of the company. It was then renamed Kronreif & Trunkenpolz Mattighofen. Hans Trunkenpolz died in 1962 of a heart attack with his son Erich taking his place in the company. During these early years of motorcycle production at KTM, almost all components for the motorcycles were built in-house by KTM.
Since 1990, KTM motorcycles and automobiles (X-Bow) have been designed by KiskaDesign, a Salzburg-based design firm. It is responsible for the overall branding for KTM; including the design of the vehicles, shops, exhibits and printed material.
KTM began in motorsports with Motocross Racing. In the last few years KTM has gained more success in motorsports by dominating rally-raid events such as the Paris-Dakar Rally and the Atlas-Rally. In 2003, KTM started sponsoring and supporting Road racing in various capacities, with the most successful results stemming from their Supermotard or Supermoto efforts. KTM's new road racing focus will soon grow to include Superbike competition with the help of their newly developed V-Twin engine dubbed the LC8 as employed in the 950 Adventure dual-sport motorcycle, and more specifically the 2005/2006 990 Super Duke followed by the superbike contender known as the 1190 RC8. The Super Duke will have a higher output, second generation version of the LC8 engine, geared for high rpm peak power as required in road racing and superstreet applications while the RC8 will sport a 1,190 cc version of the LC8 for more midrange.
KTM offers a range of different engines for its larger motorcycles, all liquid-cooled.
KTM's official company/team colours are Orange, Black and Silver. To create a strong brand identity, all competition-ready KTMs come from the factory with bright orange plastic with "KTM" emblazoned on the side of the radiator shrouds. All KTM bikes also come from the factory with a Motorex sticker on the outside of the motor. All first fills of oil come from Motorex as well. Some official KTM teams use different colors for their bikes, most noticeably in the Dakar Rally.