Editing DKW RT125

[[Image:2001-07-31 DKW RT 125 im Audi-Museum 02.jpg|thumb|170px|The famous DKW&nbsp;RT&nbsp;125 of 1950]]
[[Image:MZ-RT-125.jpg|thumb|300px|right|MZ RT 125]]

The '''RT 125''' was a model of [[Two-stroke cycle|two-stroke]] [[motorcycle]] made by [[DKW]] in Zschopau in the 1930s, Industrieverband Fahrzeugbau and [[MZ Motorrad- und Zweiradwerk GmbH|MZ]] in the 1950s and early 1960s, and [[DKW]] in Ingolstadt in the 1950s and 1960s. "RT" stands for "Reichstyp" or "National Model".

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 port]]s. 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 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]].
==External links==
* [http://www.mz1000s.de/cgi-bin/click.system?navid=448&sid=c MZ RT125 Homepage]
* [http://www.mzriders.com/viewforum.php?f=4 MZ/MuZ Riders Forums - 125cc page]
* [http://www.mzriders.com/portal.php "MZ Riders" web site - front page owner support all models]

[[Category:MZ motorcycles]]
[[Category:DKW motorcycles]]
[[Category:1930s motorcycles]]
[[Category:1950s motorcycles]]
[[Category:1960s motorcycles]]

{{motorcycle-stub}}
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-{{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}}
 [[Image:2001-07-31 DKW RT 125 im Audi-Museum 02.jpg|thumb|170px|The famous DKW&nbsp;RT&nbsp;125 of 1950]]
 [[Image:MZ-RT-125.jpg|thumb|300px|right|MZ RT 125]]
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 {{motorcycle-stub}}
-{{Motorcycle
-|name             = DKW RT125
-|photo= 2001-07-31 DKW RT 125 im Audi-Museum 02.jpg
-|aka              = RT1252H, RT 125 2H, RT1252, RT 125 2, RT125E, RT 125 E, RT 125
-|manufacturer     = DKW
-|parent_company   =
-|production       = 1952 - 1973
-|model_year       =
-|predecessor      =
-|successor        =
-|class            = Road
-|engine           = single cylinder, two-stroke
-|bore_stroke      = 54.0mm x 54.0mm
-|compression      =
-|top_speed        = 75 mph (120 km/h)
-|power            = 16.63 HP (12.4 KW) @ 7500RPM
-|torque           =
-|fuel_system      = carburetor
-|ignition         = magneto
-|spark_plug       =
-|battery          =
-|transmission     = Gear box: 6-speed <br>
-Final Drive: [[chain]] <br>
-Clutch: wet multiplate <br>
-|frame            =
-|suspension       =Front: telescopic fork <br>
-Rear: none
-|brakes           =Front: expanding [[brake]] <br>Rear: expanding brake
-|front_tire       = {{tire|2.75-17}}
-|rear_tire   	  = {{tire|3.00-17}}
-|rake_trail       =
-|wheelbase        =
-|length           = 77.13 inches (1959 mm)
-|width            = 25.98 inches (660 mm)
-|height           = 25.98 inches (660 mm)
-|seat_height      =
-|dry_weight       = 189.6 pounds (86.0 Kg)
-|wet_weight       = 108.0 kg
-|fuel_capacity    = 2.77 Gallon (10.50 Liters)
-|oil_capacity     =
-|fuel_consumption =
-|turning_radius   =
-|related          =
-|competition      =
-}}
-The '''[[DKW]] RT125E''' was a single cylinder, two-stroke Road [[motorcycle]] produced by [[DKW]] between 1952 and 1973. It could reach a top speed of 75 mph (120 km/h). Claimed [[horsepower]] was 16.63 HP (12.4 KW) @ 7500 RPM.
-==Engine==
-The engine was a [[air cooled]] single cylinder, two-stroke. A 54.0mm [[bore]] x 54.0mm [[stroke]] result in a [[displacement]] of just 124.0 cubic centimeters. Fuel was supplied via a [[port]] control.
-==Drive==
-The bike has a 6-speed transmission. Power was moderated via the wet multiplate.
-==Chassis==
-It came with a 2.75-17 front [[tire]] and a 3.00-17 rear tire. Stopping was achieved via expanding brake in the front and a expanding brake in the rear. The front suspension was a  telescopic fork while the rear was equipped with a none. The RT125E was fitted with a 2.77 Gallon (10.50 Liters) fuel tank. The bike weighed just 189.6 pounds (86.0 Kg).
-==In Media==
-* [https://motopixel.org/pixel/jagerblut#dkw-rt125 Jägerblut]
-[[Category:Road motorcycles]]
-[[Category:DKW motorcycles]]
-[[Category:1960s motorcycles]]
-[[Category:1970s motorcycles]]
-[[Category:1950s motorcycles]]