Difference between revisions of "AJS Model 31"
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[[Category: 1960s motorcycles]] | [[Category: 1960s motorcycles]] | ||
[[Category: 1950s motorcycles]] | [[Category: 1950s motorcycles]] | ||
{{Infobox Motorcycle | |||
|name = '''AJS Model 31''' | |||
|image = | |||
|aka = Model 31650 Swift, Model 31 650 Swift | |||
|manufacturer = [[AJS]] | |||
|parent_company = | |||
|production = 1959 - 1966 | |||
|model_year = | |||
|predecessor = | |||
|successor = | |||
|class = [[Road]] | |||
|engine = twin, four-stroke | |||
|bore_stroke = 72.0mm x 79.3mm | |||
|compression = | |||
|top_speed = | |||
|power = 30.71 HP (22.9 KW) @ 6000RPM | |||
|torque = | |||
|fuel_system = carburettor | |||
|ignition = magneto | |||
|spark_plug = | |||
|battery = 7.5:1 | |||
|transmission = Gear box: 4-speed <br> | |||
Final Drive: [[chain]] <br> | |||
Clutch: wet multiplate <br> | |||
|frame = | |||
|suspension =Front: [[hydraulic]] telescopic <br> | |||
Rear: twin shock girling | |||
|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 = | |||
|length = | |||
|width = | |||
|height = | |||
|seat_height = | |||
|dry_weight = 388.01 pounds (176.0 Kg) | |||
|wet_weight = | |||
|fuel_capacity = 4.23 Gallon (16.00 Liters) | |||
|oil_capacity = | |||
|fuel_consumption = | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | |||
The '''[[AJS]] Model 31650 Swift''' was a twin, [[four-stroke]] Road [[motorcycle]] produced by [[AJS]] between 1959 and 1966. Claimed [[horsepower]] was 30.71 HP (22.9 KW) @ 6000 RPM. | |||
==Engine== | |||
The engine was a [[air cooled]] twin, four-stroke. A 72.0mm [[bore]] x 79.3mm [[stroke]] result in a [[displacement]] of just 646.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv). | |||
==Drive== | |||
The bike has a 4-speed 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 girling. The Model 31650 Swift was fitted with a 4.23 Gallon (16.00 Liters) fuel tank. The bike weighed just 388.01 pounds (176.0 Kg). | |||
==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:Road motorcycles]] | |||
[[Category:AJS motorcycles]] | |||
[[Category:1960s motorcycles]] | |||
[[Category:1950s motorcycles]] | |||
[[Category:Motorcycles needing images]] | |||
Revision as of 17:10, 24 May 2019
 | |
| Manufacturer | AJS |
|---|---|
| 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 |
| Horse Power | 43.05 HP (32.1 KW) @ 6000RPM |
| 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 |
| Manuals | Service Manual |
| Tech Specs · Brochures · Reviews · Ads · Videos | |
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
A 71.1mm bore x 71.1mm stroke result in a displacement of just 646.0 cubic centimeters.
Drive
The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.
Chassis
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
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.
| Manufacturer | AJS |
|---|---|
| Also called | Model 31650 Swift, Model 31 650 Swift |
| Production | 1959 - 1966 |
| Class | Road |
| Engine | twin, four-stroke |
| Bore / Stroke | 72.0mm x 79.3mm |
| Horse Power | 30.71 HP (22.9 KW) @ 6000RPM |
| Fuel system | carburettor |
| Ignition type | magneto |
| Battery | 7.5:1 |
| Transmission | Gear box: 4-speed Final Drive: chain |
| Suspension | Front: hydraulic telescopic Rear: twin shock girling |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 3.25-19 |
| Rear Tire | 3.25-19 |
| Weight | 388.01 pounds (176.0 Kg) |
| Fuel capacity | 4.23 Gallon (16.00 Liters) |
| Manuals | Service Manual |
| Tech Specs · Brochures · Reviews · Ads · Videos | |
The AJS Model 31650 Swift was a twin, four-stroke Road motorcycle produced by AJS between 1959 and 1966. Claimed horsepower was 30.71 HP (22.9 KW) @ 6000 RPM.
Engine
The engine was a air cooled twin, four-stroke. A 72.0mm bore x 79.3mm stroke result in a displacement of just 646.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
Drive
The bike has a 4-speed 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 girling. The Model 31650 Swift was fitted with a 4.23 Gallon (16.00 Liters) fuel tank. The bike weighed just 388.01 pounds (176.0 Kg).