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Difference between revisions of "BSA M21"
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==1953== | ==1953== | ||
[[Image:1953-BSA-M21-Maroon-2746-0.jpg|left|thumb|1953 BSA M21 in Maroon]][[Image:1953-BSA-M21-Maroon-2746-1.jpg|left|thumb|1953 BSA M21 in Maroon]][[Image:1953-BSA-M21-Maroon-2746-2.jpg|left|thumb|1953 BSA M21 in Maroon]][[Image:1953-BSA-M21-Maroon-2746-3.jpg|left|thumb|1953 BSA M21 in Maroon]] | [[Image:1953-BSA-M21-Maroon-2746-0.jpg|left|thumb|1953 BSA M21 in Maroon]] | ||
[[Image:1953-BSA-M21-Maroon-2746-1.jpg|left|thumb|1953 BSA M21 in Maroon]] | |||
[[Image:1953-BSA-M21-Maroon-2746-2.jpg|left|thumb|1953 BSA M21 in Maroon]] | |||
[[Image:1953-BSA-M21-Maroon-2746-3.jpg|left|thumb|1953 BSA M21 in Maroon]] | |||
<br style="clear: left"/> | <br style="clear: left"/> | ||
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[[Category:1950s motorcycles|BSA M21]] | [[Category:1950s motorcycles|BSA M21]] | ||
[[Category:BSA motorcycles|BSA M21]] | [[Category:BSA motorcycles|BSA M21]] | ||
{{Motorcycle | |||
|name = BSA M21 | |||
|photo= 1953-BSA-M21-Maroon-2746-0.jpg | |||
|aka = M 21 | |||
|manufacturer = BSA | |||
|parent_company = | |||
|production = 1937 - 1956 | |||
|model_year = | |||
|predecessor = | |||
|successor = | |||
|class = Classic | |||
|engine = single cylinder, four-stroke | |||
|bore_stroke = 82.0mm x 112.0mm | |||
|compression = 5.0:1 | |||
|top_speed = | |||
|power = 14.62 HP (10.9 KW) @ 4000RPM | |||
|torque = | |||
|ignition = magneto | |||
|spark_plug = | |||
|battery = | |||
|transmission = Gear box: 4-speed, manual <br> | |||
Final Drive: [[chain]] <br> | |||
Clutch: wet multiplate <br> | |||
|frame = | |||
|suspension =Front: [[hydraulic]] telescopic <br> | |||
Rear: twin shock | |||
|brakes =Front: expanding [[brake]] (drum brake) <br>Rear: expanding brake (drum brake) | |||
|front_tire = {{tire|3.25-19}} | |||
|rear_tire = {{tire|3.25-19}} | |||
|rake_trail = | |||
|wheelbase = 54.02 inches (1372 mm) | |||
|length = 85.79 inches (2179 mm) | |||
|width = 29.09 inches (739 mm) | |||
|height = | |||
|seat_height = 28.5 inches (724 mm) | |||
|dry_weight = 396.83 pounds (180.0 Kg) | |||
|wet_weight = 167.0 kg | |||
|fuel_capacity = 3.0 Gallon (11.36 Liters) | |||
|oil_capacity = | |||
|fuel_consumption = | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | |||
The '''[[BSA]] M21''' was a single cylinder, [[four-stroke]] Classic [[motorcycle]] produced by [[BSA]] between 1937 and 1956. Claimed [[horsepower]] was 14.62 HP (10.9 KW) @ 4000 RPM. | |||
==Engine== | |||
A 82.0mm [[bore]] x 112.0mm [[stroke]] result in a [[displacement]] of just 591.0 cubic centimeters. Fuel was supplied via a sidevalves. | |||
==Drive== | |||
The bike has a 4-speed, manual transmission. Power was moderated via the wet multiplate. | |||
==Chassis== | |||
It came with a 3.25-19 front [[tire]] and a 3.25-19 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a hydraulic telescopic while the rear was equipped with a twin shock. The M21 was fitted with a 3.0 Gallon (11.36 Liters) fuel tank. The bike weighed just 396.83 pounds (180.0 Kg). The wheelbase was 54.02 inches (1372 mm) long. | |||
==1937 - 1961 BSA M21== | |||
[[File:bsa-m21-1937-1961-3.jpg|600px|1937 - 1961 BSA M21]] | |||
[[File:bsa-m21-1937-1961-2.jpg|600px|1937 - 1961 BSA M21]] | |||
[[File:bsa-m21-1937-1961-1.jpg|600px|1937 - 1961 BSA M21]] | |||
[[File:bsa-m21-1937-1961-0.jpg|600px|1937 - 1961 BSA M21]] | |||
The M21 from British manufacturer BSA sports an air-cooled, four-stroke, 591cc, single cylinder powerplant mated to a four-speed manual transmission that can reach a maximum power output of 15 horsepower at 4200 rpm. Standard fittings for this classic machine include laced wheels, drum brakes in the front and in the rear, a large headlight, a hard-tail rear suspension, a single spring girder fork in the front, a sprung single seat and a chromed exhaust system. | |||
==In Media== | |||
* [https://motopixel.org/pixel/britains-best-drives#bsa-m21 Britain's Best Drives] | |||
* [https://motopixel.org/pixel/the-league-of-gentlemen#bsa-m21 The League of Gentlemen] | |||
* [https://motopixel.org/pixel/look-at-life-horse-power-riders#bsa-m21 Look at Life: Horse-Power Riders] | |||
* [https://motopixel.org/pixel/quadrophenia#bsa-m21 Quadrophenia] | |||
* [https://motopixel.org/pixel/whisky-galore#bsa-m21 Whisky Galore] | |||
* [https://motopixel.org/pixel/seance-on-a-wet-afternoon#bsa-m21 Seance on a Wet Afternoon] | |||
* [https://motopixel.org/pixel/el-aprendiz-de-malo#bsa-m21 El aprendiz de malo] | |||
* [https://motopixel.org/pixel/dads-army-2#bsa-m21 Dad's Army] | |||
* [https://motopixel.org/pixel/on-the-buses#bsa-m21 On the Buses] | |||
* [https://motopixel.org/pixel/the-countrywomen#bsa-m21 The Countrywomen] | |||
* [https://motopixel.org/pixel/la-legge#bsa-m21 La legge] | |||
[[Category:Classic motorcycles]] | |||
[[Category:BSA motorcycles]] | |||
[[Category:1930s motorcycles]] | |||
[[Category:1940s motorcycles]] | |||
[[Category:1950s motorcycles]] | |||