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{{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}}
[[Image:Triumph Speed Twin a.jpg|right|thumb|280px|1939 Triumph Speed Twin]]
[[Image:Triumph Speed Twin a.jpg|right|thumb|280px|1939 Triumph Speed Twin]]
[[Image:1939-Triumph-Speed-Twin.jpg|right|thumb|280px|1939 Triumph Speed Twin]]
[[Image:1939-Triumph-Speed-Twin.jpg|right|thumb|280px|1939 Triumph Speed Twin]]
The '''Triumph Speed Twin''' was a 490[[cc]], [[Four stroke|4-stroke]], [[street motorcycle]] manufactured by [[Triumph]] from 1937 through 1958.
The '''Triumph Speed Twin''' was a 490[[cc]], [[Four stroke|4-stroke]], [[street motorcycle]] manufactured by [[Triumph]] from 1937 through 1958.
Edward Turner's revolutionary vertical twin only had a brief production period in the late 1930's when WWII intervened.  Post-war, the Speed Twin re-appeared in similar form with the Addition of [[telescopic fork]]s replacing the old style girders.  Maroon Speed Twins were used by the majority of [[:Category:Police motorcycles|police]] forces in Britain and were popular for their speed and flexibility.


The '''Speed Twin''' was the basis for all Triumph twins until the 1980s. Its four-speed transmission was a simple design that would be used in several Triumph models over the years.
The '''Speed Twin''' was the basis for all Triumph twins until the 1980s. Its four-speed transmission was a simple design that would be used in several Triumph models over the years.
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*Four-speed transmission in separate case
*Four-speed transmission in separate case
*Top speed: 92 [[mph]]
*Top speed: 92 [[mph]]
==1948==
[[Image:1948 Triumph Speed Twin.jpg|left|thumb|1948 Triumph Speed Twin]]
{{clear}}
{{Triumph}}


[[Category:Triumph motorcycles]]
[[Category:Triumph motorcycles]]
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[[Category:Twin cylinder motorcycles]]
[[Category:Twin cylinder motorcycles]]
[[Category:Twin cylinder 4-stroke motorcycles]]
[[Category:Twin cylinder 4-stroke motorcycles]]
{{Motorcycle
|name            = Triumph Speed Twin
|photo= Triumph Speed Twin a.jpg
|aka              = Speed Twin 5T
|manufacturer    = Triumph
|parent_company  =
|production      = 1937 - 2019
|model_year      =
|predecessor      =
|successor        =
|class            = Cruiser
|engine          = Liquid cooled, 8 valve, SOHC, Parallel twin
|bore_stroke      = 96.5mm x 96.5mm
|compression      = 11.0:1
|top_speed        =
|power            = 96.96 HP (72.3 KW) @ 6750RPM
|torque          = 83.35 ft/lbs (113.0 Nm) @ 4950RPM
|fuel_system      = Multipoint sequential electronic fuel injection
|ignition        = lucas altrnator
|spark_plug      =
|battery          =
|transmission    = Gear box: 6-Speed <br>
Final Drive: Chain <br>
Clutch: Wet, multi-plate assist [[clutch]] <br>
|frame            =
|suspension      =Front: 41 mm cartridge forks, 120mm travel <br>
Rear: Twin shocks with adjustable preload, 120 mm rear [[wheel]] travel
|brakes          =Front: Double discs 305 mm <br>Rear: Single disc 220 mm
|front_tire      = {{tire|120/70 ZR17}}
|rear_tire    = {{tire|160/60 ZR17}}
|rake_trail      =
|wheelbase        = 56.3 inches (1430 mm)
|length          =
|width            = 29.88 inches (759 mm)
|height          =
|seat_height      = 31.81 inches (808 mm)
|dry_weight      = 350.09 pounds (158.8 Kg)
|wet_weight      = 209.0 kg
|fuel_capacity    =
|oil_capacity    =
|fuel_consumption =
|turning_radius  =
|related          =
|competition      =
}}
The '''[[Triumph]] Speed Twin''' was a Liquid cooled, 8 valve, SOHC, Parallel twin Cruiser [[motorcycle]] produced by [[Triumph]] between 1937 and 2019. Max [[torque]] was 83.35 ft/lbs (113.0 Nm) @ 4950 RPM. Claimed [[horsepower]] was 96.96 HP (72.3 KW) @ 6750 RPM. 
==Engine==
A 96.5mm [[bore]] x 96.5mm [[stroke]] result in a [[displacement]] of just 1200.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv). 
==Drive==
The bike has a 6-Speed transmission. Power was moderated via the Wet, multi-plate assist clutch. 
==Chassis==
It came with a 120/70 ZR17 front [[tire]] and a 160/60 ZR17 rear tire. Stopping was achieved via Double discs 305 mm in the front and a Single disc 220 mm in the rear. The front suspension was a  41 mm cartridge forks, 120mm travel while the rear was equipped with a Twin shocks with adjustable preload, 120 mm rear wheel travel. The bike weighed just 350.09 pounds (158.8 Kg). The wheelbase was 56.3 inches (1430 mm) long. 
==2019 Triumph Speed Twin==
[[File:triumph-speed-twin-2019-4.jpg|600px|2019 Triumph Speed Twin]]
[[File:triumph-speed-twin-2019-3.jpg|600px|2019 Triumph Speed Twin]]
[[File:triumph-speed-twin-2019-2.jpg|600px|2019 Triumph Speed Twin]]
[[File:triumph-speed-twin-2019-1.jpg|600px|2019 Triumph Speed Twin]]
[[File:triumph-speed-twin-2019-0.jpg|600px|2019 Triumph Speed Twin]]
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* [https://motopixel.org/pixel/kirsty-mccoll-terry#triumph-speed-twin Kirsty McColl: Terry]
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* [https://motopixel.org/pixel/the-beverly-hillbillies#triumph-speed-twin The Beverly Hillbillies]
* [https://motopixel.org/pixel/look-at-life-pictures-tell-the-story#triumph-speed-twin Look at Life: Pictures Tell the Story]
* [https://motopixel.org/pixel/the-beatles-anthology#triumph-speed-twin The Beatles Anthology]
* [https://motopixel.org/pixel/gorgo#triumph-speed-twin Gorgo]
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* [https://motopixel.org/pixel/le-grand-restaurant#triumph-speed-twin Le grand restaurant]
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* [https://motopixel.org/pixel/midsomer-murders#triumph-speed-twin Midsomer Murders]
* [https://motopixel.org/pixel/marple-ordeal-by-innocence#triumph-speed-twin Marple: Ordeal by Innocence]
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==References==
{{reflist}}
[[Category:Cruiser motorcycles]]
[[Category:Triumph motorcycles]]
[[Category:1990s motorcycles]]
[[Category:1960s motorcycles]]
[[Category:1930s motorcycles]]
[[Category:2000s motorcycles]]
[[Category:1970s motorcycles]]
[[Category:1940s motorcycles]]
[[Category:2010s motorcycles]]
[[Category:1980s motorcycles]]
[[Category:1950s motorcycles]]

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