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Difference between revisions of "BMW R25"
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[[ | {{Motorcycle | ||
The '''BMW R25''' was a [[motorcycle]] | |name = BMW R25 | ||
|photo= R25.jpg | |||
|aka = R25 2, R25 3, R 25 | |||
|manufacturer = BMW | |||
|parent_company = | |||
|production = 1950 - 1956 | |||
|model_year = | |||
|predecessor = [[BMW R24]] | |||
|successor = | |||
|class = Classic | |||
|engine = single cylinder, four-stroke | |||
|bore_stroke = 68.0mm x 68.0mm | |||
|compression = 6.5:1 | |||
|top_speed = 55 mph (88 km/h) | |||
|power = 12.74 HP (9.5 KW) @ 5800RPM | |||
|torque = | |||
|ignition = battery | |||
|spark_plug = | |||
|battery = | |||
|transmission = Gear box: 4-speed <br> | |||
Final Drive: [[shaft]] drive (cardan) <br> | |||
Clutch: single plate dry-cable operated <br> | |||
|frame = | |||
|suspension =Front: cartridge <br> | |||
Rear: telscopic | |||
|brakes =Front: expanding [[brake]] (drum brake) <br>Rear: expanding brake (drum brake) | |||
|front_tire = {{tire|3.27-18}} | |||
|rear_tire = {{tire|3.27-18}} | |||
|rake_trail = | |||
|wheelbase = 52.56 inches (1335 mm) | |||
|length = 81.3 inches (2065 mm) | |||
|width = 29.92 inches (760 mm) | |||
|height = 27.95 inches (710 mm) | |||
|seat_height = 28.74 inches (730 mm) | |||
|dry_weight = | |||
|wet_weight = 150.0 kg | |||
|fuel_capacity = 3.17 Gallon (12.00 Liters) | |||
|oil_capacity = | |||
|fuel_consumption = 2.90 liters/100 km (34.5 km/l or 81.11 mpg) | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | |||
The '''[[BMW]] R25 3''' was a single cylinder, [[four-stroke]] Classic [[motorcycle]] produced by [[BMW]] between 1950 and 1956. It could reach a top speed of 55 mph (88 km/h). Claimed [[horsepower]] was 12.74 HP (9.5 KW) @ 5800 RPM. | |||
==Design== | ==Design== | ||
| Line 16: | Line 64: | ||
One of the main reasons for the '''BMW R25''''s lack of sales success in [[:Category:English motorcycles|Britain]] when it was new was the bike's relatively high price. It cost £228 in the UK, at a time when the [[BSA C11G]] cost just £150. This can be traced straight back to the government of the day which, for better or worse, insisted that foreign luxury goods coming into the UK should be subject to an horrendous punitive import tax. The price of the 250cc BMWs in Europe - the land mass the other side of the English Channel - was totally different, which is why they were so popular and the factory could sell every one they built. | One of the main reasons for the '''BMW R25''''s lack of sales success in [[:Category:English motorcycles|Britain]] when it was new was the bike's relatively high price. It cost £228 in the UK, at a time when the [[BSA C11G]] cost just £150. This can be traced straight back to the government of the day which, for better or worse, insisted that foreign luxury goods coming into the UK should be subject to an horrendous punitive import tax. The price of the 250cc BMWs in Europe - the land mass the other side of the English Channel - was totally different, which is why they were so popular and the factory could sell every one they built. | ||
==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 4-speed transmission. Power was moderated via the single plate dry-cable operated. | |||
==Chassis== | |||
It came with a 3.27-18 front [[tire]] and a 3.27-18 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 cartridge while the rear was equipped with a telscopic. The R25 3 was fitted with a 3.17 Gallon (12.00 Liters) fuel tank. The wheelbase was 52.56 inches (1335 mm) long. | |||
==1951 BMW R 25== | |||
<gallery mode="slideshow"> | |||
File:bmw-r25-1951-1951-1.jpg|600px|1951 BMW R 25 | |||
File:bmw-r25-1951-1951-0.jpg|600px|1951 BMW R 25 | |||
File:1951-BMW-R25-Black-958-0.jpg|left|thumb|1951 BMW R25 in Black | |||
File:1951-BMW-R25-Black-958-1.jpg|left|thumb|1951 BMW R25 in Black | |||
File:1951-BMW-R25-Black-958-2.jpg|left|thumb|1951 BMW R25 in Black | |||
File:1951-BMW-R25-Black-958-3.jpg|left|thumb|1951 BMW R25 in Black | |||
File:1951-BMW-R25-Black-958-4.jpg|left|thumb|1951 BMW R25 in Black | |||
File:1951-BMW-R25-Black-958-5.jpg|left|thumb|1951 BMW R25 in Black | |||
File:1951-BMW-R25-Black-958-6.jpg|left|thumb|1951 BMW R25 in Black | |||
File:1951-BMW-R25-Black-958-7.jpg|left|thumb|1951 BMW R25 in Black | |||
</gallery> | |||
The 1950 BMW R 25 sports an air-cooled, four-stroke, 247cc, single cylinder engine mated to a four-speed manual transmission that can produce a claimed 12 horsepower at 5600 rpm. Standard features include laced wheels, a pushrod rear suspension with a sprung single seat, a telescopic front fork, a rear luggage rack, wide handlebars, a large headlamp, a small tail light, full fenders and a dry, single plate clutch. | |||
==1952== | ==1952== | ||
| Line 35: | Line 98: | ||
==1955== | ==1955== | ||
<gallery mode="slideshow"> | |||
File:1955-BMW-R25-3-Black-7344-0.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-7344-1.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-7344-2.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-7344-3.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-7344-4.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-7344-5.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-7344-6.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-7344-7.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-4148-0.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-4148-1.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-4148-2.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-4148-3.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-4148-4.jpg|left|thumb|1955 BMW R25/3 in Black | |||
File:1955-BMW-R25-3-Black-4148-5.jpg|left|thumb|1955 BMW R25/3 in Black | |||
</gallery> | |||
<br style="clear: left"/> | <br style="clear: left"/> | ||
*250cc Single | *250cc Single | ||
==In Media== | |||
* [https://motopixel.org/pixel/im-lauf-der-zeit#bmw-r25 Im Lauf der Zeit] | |||
* [https://motopixel.org/pixel/las-des-as#bmw-r25 L'as des as] | |||
* [https://motopixel.org/pixel/marche-ou-creve#bmw-r25 Marche ou crève] | |||
* [https://motopixel.org/pixel/laffaire-nina-b#bmw-r25 L'affaire Nina B.] | |||
* [https://motopixel.org/pixel/les-assassins-du-dimanche#bmw-r25 Les assassins du dimanche] | |||
* [https://motopixel.org/pixel/die-rosel-vom-schwarzwald#bmw-r25 Die Rosel vom Schwarzwald] | |||
* [https://motopixel.org/pixel/se-alkoi-sateessa#bmw-r25 Se alkoi sateessa] | |||
* [https://motopixel.org/pixel/jagode-u-grlu#bmw-r25 Jagode u grlu] | |||
* [https://motopixel.org/pixel/gruppenbild-mit-dame#bmw-r25 Gruppenbild mit Dame] | |||
* [https://motopixel.org/pixel/die-letzte-sau#bmw-r25 Die letzte Sau] | |||
* [https://motopixel.org/pixel/nachbarn-sind-zum-argern-da#bmw-r25 Nachbarn sind zum Ärgern da] | |||
* [https://motopixel.org/pixel/la-poudre-descampette#bmw-r25 La poudre d'escampette] | |||
* [https://motopixel.org/pixel/jongens-jongens-wat-een-meid#bmw-r25 Jongens, jongens, wat een meid] | |||
* [https://motopixel.org/pixel/sos-gletscherpilot#bmw-r25 SOS Gletscherpilot] | |||
* [https://motopixel.org/pixel/fantom-kiler-3#bmw-r25 Fantom kiler 3] | |||
* [https://motopixel.org/pixel/van-der-valk-und-das-madchen#bmw-r25 Van der Valk und das Mädchen] | |||
==External Links == | |||
[https://bmwdean.com/r25-3.htm Personal site about BMW R25/3] | |||
{{BMW}} | {{BMW}} | ||
[[Category:BMW motorcycles|R25]] | [[Category:BMW motorcycles|R25]] | ||
[[Category:BMW R series]] | [[Category:BMW R series]] | ||
[[Category:Classic motorcycles]] | |||
[[Category:1950s motorcycles]] | |||