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Difference between revisions of "DKW RT125"
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In the 1930s DKW pioneered the Schnurle [[Two-stroke cycle|two-stroke]] loop scavenging process to dispense with the use of a deflector [[piston]] and improve efficiency of the combustion chamber. DKW also developed a highly efficient arrangement of transfer ports. These two features were included in the RT 125 to great commercial advantage. Competitor companies such as Adler and TWN copied the adoption of flat-topped pistons and strove to develop equally transfer port arrangements without infringing DKW's patent. | In the 1930s DKW pioneered the Schnurle [[Two-stroke cycle|two-stroke]] loop scavenging process to dispense with the use of a deflector [[piston]] and improve efficiency of the combustion chamber. DKW also developed a highly efficient arrangement of transfer ports. These two features were included in the RT 125 to great commercial advantage. Competitor companies such as Adler and TWN copied the adoption of flat-topped pistons and strove to develop equally transfer port arrangements without infringing DKW's patent. | ||
The RT 125 is probably the most copied motorcycle of all time. After World War II the Soviet Union took plans, tooling and even several dozen personnel as war reparations to [[MMZ (motorcycle)|MMZ]] in Moscow (later transferred to [[Minsk (motorcycle)|MMVZ]] and SMZ) and to a factory in Kovrov, and produced copies of the RT125 as the M1A Moskva and K-125 respectively. [[Warszawska Fabryka Motocykli|WFM]] of Poland made a modified version of the RT125 (under [[SHL (motorcycle)|SHL]] 125 and Sokół 125 brands), developed into 125/175 ccm family motorcycles, produced until 1985. RT 125 plans were also taken to the United Kingdom where they became the basis of the [[BSA Bantam]], and to the USA where they formed the basis of the [[Harley-Davidson]] "[[Harley-Davidson_Hummer|Hummer]]". Later [[Yamaha Motor Company|Yamaha]] in Japan copied the RT 125 as the basis of the [[Yamaha YA-1]]. | The RT 125 is probably the most copied motorcycle of all time. After World War II the Soviet Union took plans, tooling and even several dozen personnel as war reparations to [[MMZ (motorcycle)|MMZ]] in Moscow (later transferred to [[Minsk (motorcycle)|MMVZ]] and SMZ) and to a factory in Kovrov, and produced copies of the RT125 as the M1A Moskva and K-125 respectively. [[Warszawska Fabryka Motocykli|WFM]] of Poland made a modified version of the RT125 (under [[SHL (motorcycle)|SHL]] 125 and Sokół 125 brands), developed into 125/175 ccm family motorcycles, produced until 1985. RT 125 plans were also taken to the United Kingdom where they became the basis of the [[BSA Bantam]], and to the USA where they formed the basis of the [[Harley-Davidson]] "[[Harley-Davidson_Hummer|Hummer]]". Later [[Yamaha Motor Company|Yamaha]] in Japan copied the RT 125 as the basis of their first motorcycle, the [[Yamaha YA-1]]. | ||
Since 2000 ''[[MZ Motorrad- und Zweiradwerk GmbH]]'' has used '''RT 125''' to refer to an entirely new model of [[Four-stroke cycle|four stroke]] motorcycle. This motorcycle features a 125cc liquid cooled [[DOHC]] single cylinder engine. It is claimed to be the most powerful commercially produced four stroke 125cc engine in the world, developing 15 [[Horsepower#Brake_horsepower|bhp]]. | Since 2000 ''[[MZ Motorrad- und Zweiradwerk GmbH]]'' has used '''RT 125''' to refer to an entirely new model of [[Four-stroke cycle|four stroke]] motorcycle. This motorcycle features a 125cc liquid cooled [[DOHC]] single cylinder engine. It is claimed to be the most powerful commercially produced four stroke 125cc engine in the world, developing 15 [[Horsepower#Brake_horsepower|bhp]]. | ||