Difference between revisions of "BMW R23"
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{{BMW}} | {{BMW}} | ||
[[Category:BMW motorcycles]] | [[Category:BMW motorcycles]] | ||
{{Infobox Motorcycle | |||
|name = '''BMW R23''' | |||
|image = | |||
|aka = R 23 | |||
|manufacturer = [[BMW]] | |||
|parent_company = | |||
|production = 1938 - 1940 | |||
|model_year = | |||
|predecessor = | |||
|successor = | |||
|class = [[Classic]] | |||
|engine = single cylinder, four-stroke | |||
|bore_stroke = 68.0mm x 68.0mm | |||
|compression = 6.75:1 | |||
|top_speed = 59 mph (95 km/h) | |||
|power = 9.79 HP (7.3 KW) @ 5400RPM | |||
|torque = | |||
|ignition = battery | |||
|spark_plug = | |||
|battery = 6.1:1 | |||
|transmission = Gear box: 3-speed <br> | |||
Final Drive: [[shaft]] drive (cardan) <br> | |||
Clutch: single plate dry <br> | |||
|frame = | |||
|suspension =Front: telescopic fork <br> | |||
Rear: rigid | |||
|brakes =Front: expanding [[brake]] (drum brake) <br>Rear: expanding brake (drum brake) | |||
|front_tire = {{tire|2.99-19}} | |||
|rear_tire = {{tire|2.99-19}} | |||
|rake_trail = | |||
|wheelbase = 52.36 inches (1330 mm) | |||
|length = 78.74 inches (2000 mm) | |||
|width = 31.5 inches (800 mm) | |||
|height = 35.43 inches (900 mm) | |||
|seat_height = | |||
|dry_weight = | |||
|wet_weight = 135.0 kg | |||
|fuel_capacity = 2.54 Gallon (9.60 Liters) | |||
|oil_capacity = | |||
|fuel_consumption = | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | |||
The '''[[BMW]] R23''' was a single cylinder, [[four-stroke]] Classic [[motorcycle]] produced by [[BMW]] between 1938 and 1940. It could reach a top speed of 59 mph (95 km/h). Claimed [[horsepower]] was 9.79 HP (7.3 KW) @ 5400 RPM. | |||
==Engine== | |||
The engine was a [[air cooled]] single cylinder, four-stroke. A 68.0mm [[bore]] x 68.0mm [[stroke]] result in a [[displacement]] of just 247.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv). | |||
==Drive== | |||
The bike has a 3-speed transmission. Power was moderated via the single plate dry. | |||
==Chassis== | |||
It came with a 2.99-19 front [[tire]] and a 2.99-19 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 telescopic fork while the rear was equipped with a rigid. The R23 was fitted with a 2.54 Gallon (9.60 Liters) fuel tank. The wheelbase was 52.36 inches (1330 mm) long. | |||
==1938 - 1940 BMW R 23== | |||
[[File:bmw-r23-1938-1940-1.jpg|600px|1938 - 1940 BMW R 23]] | |||
[[File:bmw-r23-1938-1940-0.jpg|600px|1938 - 1940 BMW R 23]] | |||
The 1938 BMW R 23 has, at its heart, an air-cooled, four-stroke, 247cc, single cylinder lump mated to a three-speed manual transmission that can produce a claimed 12 horsepower at 5600 rpm. It comes with laced wheels, a sprung seat, a suspension package with a telescopic fork in the front and a hard-tail rear unit, full-coverage fenders, a large headlamp, wide handlebars, and a rear luggage rack. | |||
==In Media== | |||
* [https://motopixel.org/pixel/the-great-escape#bmw-r23 The Great Escape] | |||
* [https://motopixel.org/pixel/polizeiruf-110-der-riss#bmw-r23 Polizeiruf 110 - Der Riss] | |||
[[Category:Classic motorcycles]] | |||
[[Category:BMW motorcycles]] | |||
[[Category:1930s motorcycles]] | |||
[[Category:1940s motorcycles]] | |||
[[Category:Motorcycles needing images]] | |||
Revision as of 18:24, 21 May 2019
Developed from the single-cylinder BMW R20 of 1937/38, itself a development of BMW's best-selling R2, the R23 was produced between 1938 and 1940, 8,021 examples being sold. Powered by an overhead-valve engine producing 10bhp, the BMW R23 came with a four-speed gearbox and featured shaft drive like the larger models. Weight with a full tank of fuel was 297lbs and the top speed around 60mph (97km/h). This R23 was completed on 22nd December 1939 and delivered to Nibbrig & Greeve in the Netherlands on 23rd July 1940, two months after the Dutch had surrendered to the invading German forces!
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| Manufacturer | BMW |
|---|---|
| Also called | R 23 |
| Production | 1938 - 1940 |
| Class | Classic |
| Engine | single cylinder, four-stroke |
| Bore / Stroke | 68.0mm x 68.0mm |
| Compression ratio | 6.75:1 |
| Top speed | 59 mph (95 km/h) |
| Horse Power | 9.79 HP (7.3 KW) @ 5400RPM |
| Ignition type | battery |
| Battery | 6.1:1 |
| Transmission | Gear box: 3-speed Final Drive: shaft drive (cardan) |
| Suspension | Front: telescopic fork Rear: rigid |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 2.99-19 |
| Rear Tire | 2.99-19 |
| Wheelbase | 52.36 inches (1330 mm) |
| Dimensions | L 78.74 inches (2000 mm) W 31.5 inches (800 mm) H 35.43 inches (900 mm) |
| Weight | (dry), 135.0 kg (wet) |
| Fuel capacity | 2.54 Gallon (9.60 Liters) |
| Manuals | Service Manual |
| Tech Specs · Brochures · Reviews · Ads · Videos | |
The BMW R23 was a single cylinder, four-stroke Classic motorcycle produced by BMW between 1938 and 1940. It could reach a top speed of 59 mph (95 km/h). Claimed horsepower was 9.79 HP (7.3 KW) @ 5400 RPM.
Engine
The engine was a air cooled single cylinder, four-stroke. A 68.0mm bore x 68.0mm stroke result in a displacement of just 247.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
Drive
The bike has a 3-speed transmission. Power was moderated via the single plate dry.
Chassis
It came with a 2.99-19 front tire and a 2.99-19 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 telescopic fork while the rear was equipped with a rigid. The R23 was fitted with a 2.54 Gallon (9.60 Liters) fuel tank. The wheelbase was 52.36 inches (1330 mm) long.
1938 - 1940 BMW R 23
The 1938 BMW R 23 has, at its heart, an air-cooled, four-stroke, 247cc, single cylinder lump mated to a three-speed manual transmission that can produce a claimed 12 horsepower at 5600 rpm. It comes with laced wheels, a sprung seat, a suspension package with a telescopic fork in the front and a hard-tail rear unit, full-coverage fenders, a large headlamp, wide handlebars, and a rear luggage rack.