Difference between revisions of "AJS Model 31"
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The '''[[AJS]] Model 31 650 Swift''' | {{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}} | ||
{{Motorcycle | |||
|name = AJS Model 31 650 | |||
|photo=ajs-model-31-650-1957-1966-0.jpg | |||
|aka = 650 Swift | |||
|manufacturer = AJS | |||
|parent_company = | |||
|production = 1957 | |||
|model_year = | |||
|predecessor = | |||
|successor = | |||
|class = Classic | |||
|engine = air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder | |||
|bore_stroke = 71.1mm x 71.1mm | |||
|compression = 7.5:1 | |||
|top_speed = | |||
|power = 43.05 HP (32.1 KW) @ 6000RPM | |||
|torque = | |||
|ignition = magneto | |||
|spark_plug = | |||
|battery = | |||
|transmission = Gear box: 4-speed, manual <br> | |||
Final Drive: [[chain]] <br> | |||
Clutch: wet multi-disc, manual <br> | |||
|frame = | |||
|suspension =Front: telescopic fork <br> | |||
Rear: dual shocks | |||
|brakes =Front: drum <br>Rear: drum | |||
|front_tire = 3.25 -19 | |||
|rear_tire = 3.50 -19 | |||
|rake_trail = | |||
|wheelbase = | |||
|length = | |||
|width = | |||
|height = | |||
|seat_height = | |||
|dry_weight = | |||
|wet_weight = | |||
|fuel_capacity = 4.23 Gallon (16.00 Liters) | |||
|oil_capacity = | |||
|fuel_consumption = | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | |||
The '''[[AJS]] Model 31 650 Swift''' was a air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder Classic [[motorcycle]] produced by [[AJS]] in 1957. Claimed [[horsepower]] was 43.05 HP (32.1 KW) @ 6000 RPM. | |||
==Engine== | ==Engine== | ||
A 71.1mm [[bore]] x 71.1mm [[stroke]] result in a [[displacement]] of just 646.0 cubic centimeters. | |||
==Drive== | ==Drive== | ||
The bike has a 4-speed | The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual. | ||
==Chassis== | ==Chassis== | ||
It | It came with a 3.25 -19 front [[tire]] and a 3.50 -19 rear tire. Stopping was achieved via drum in the front and a drum in the rear. The front suspension was a telescopic fork while the rear was equiped with a dual shocks. | ||
[[Category: AJS motorcycles]] | |||
[[Category: 1960s motorcycles]] | ==1957 - 1966 AJS Model 31 650== | ||
[[Category: 1950s motorcycles]] | [[File:ajs-model-31-650-1957-1966-0.jpg|600px|1957 - 1966 AJS Model 31 650]] | ||
The 1957 AJS Model 31 650 has, at its heart, an air-cooled, four-stroke, 646cc, parallel twin powerhouse paired to a four-speed manual transmission, and can reach a maximum power output of 43 horsepower at 6000 rpm. | |||
It comes standard with features such as a blacked-out frame, a suspension package composed of a front telescopic fork and dual shocks as a rear suspension, a dual seat, a chromed, dual exhaust system, laced wheels, full fenders, and a dual tone paint scheme. | |||
==In Media== | |||
* [https://motopixel.org/pixel/some-people#ajs-model-31 Some People] | |||
* [https://motopixel.org/pixel/today-in-britain#ajs-model-31 Today in Britain] | |||
[[Category:Classic motorcycles]] | |||
[[Category:Road motorcycles]] | |||
[[Category:AJS motorcycles|Model 31]] | |||
[[Category:1960s motorcycles]] | |||
[[Category:1950s motorcycles]] | |||
Latest revision as of 20:17, 23 November 2019
 |
|
| AJS Model 31 650 | |
| Manufacturer | |
|---|---|
| Also called | 650 Swift |
| Production | 1957 |
| Class | Classic |
| Engine | air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder |
| Bore / Stroke | 71.1mm x 71.1mm |
| Compression ratio | 7.5:1 |
| Horsepower | 43.05 HP (32.1 KW) @ 6000RPM |
| Ignition | magneto |
| Transmission | Gear box: 4-speed, manual Final Drive: chain |
| Suspension | Front: telescopic fork Rear: dual shocks |
| Brakes | Front: drum Rear: drum |
| Front Tire | 3.25 -19 |
| Rear Tire | 3.50 -19 |
| Weight | |
| Fuel Capacity | 4.23 Gallon (16.00 Liters) |
| Manuals | Service Manual |
The AJS Model 31 650 Swift was a air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder Classic motorcycle produced by AJS in 1957. Claimed horsepower was 43.05 HP (32.1 KW) @ 6000 RPM.
Engine[edit | edit source]
A 71.1mm bore x 71.1mm stroke result in a displacement of just 646.0 cubic centimeters.
Drive[edit | edit source]
The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.
Chassis[edit | edit source]
It came with a 3.25 -19 front tire and a 3.50 -19 rear tire. Stopping was achieved via drum in the front and a drum in the rear. The front suspension was a telescopic fork while the rear was equiped with a dual shocks.
1957 - 1966 AJS Model 31 650[edit | edit source]
The 1957 AJS Model 31 650 has, at its heart, an air-cooled, four-stroke, 646cc, parallel twin powerhouse paired to a four-speed manual transmission, and can reach a maximum power output of 43 horsepower at 6000 rpm.
It comes standard with features such as a blacked-out frame, a suspension package composed of a front telescopic fork and dual shocks as a rear suspension, a dual seat, a chromed, dual exhaust system, laced wheels, full fenders, and a dual tone paint scheme.