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Difference between revisions of "BMW R60"
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{{Motorcycle | {{Motorcycle | ||
|name = | |name = BMW R60 | ||
|photo = R60US.jpg | |photo = R60US.jpg | ||
|aka = R602, R 60 2, R605, R 60 5, R 60-5, R 60-6, R 60-7, R 60 | |aka = R602, R 60 2, R605, R 60 5, R 60-5, R 60-6, R 60-7, R 60 | ||
|manufacturer = | |manufacturer = BMW | ||
|parent_company = | |parent_company = | ||
|production = 1956 - 1977 | |production = 1956 - 1977 | ||
| Line 9: | Line 9: | ||
|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class = Classic | ||
|engine = two cylinder boxer, four-stroke | |engine = two cylinder boxer, four-stroke | ||
|bore_stroke = 73.5mm x 70.6mm | |bore_stroke = 73.5mm x 70.6mm | ||
| Line 17: | Line 17: | ||
|torque = 36.14 ft/lbs (49.0 Nm) @ 5000RPM | |torque = 36.14 ft/lbs (49.0 Nm) @ 5000RPM | ||
|ignition = | |ignition = | ||
|spark_plug = | |spark_plug = {{sparkplug|NGK BP7ES}} `76-80 <ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref> | ||
|battery = | |battery = | ||
|transmission = Gear box: 5-speed <br> | |transmission = Gear box: 5-speed <br> | ||
Clutch: dry-single plate-cable operated <br> | Clutch: dry-single plate-cable operated <br> | ||
|final_drive = [[shaft]] drive (cardan) | |||
|frame = | |frame = | ||
|suspension =Front: long swingarm-oil pressure shock absorbers <br> | |suspension =Front: long swingarm-oil pressure shock absorbers <br> | ||
Rear: twin shock-swingarm | Rear: twin shock-swingarm | ||
|brakes =Front: single disc <br>Rear: expanding brake | |brakes =Front: single disc <br>Rear: expanding brake | ||
|front_tire = {{tire|3.25-19}} | |front_tire = {{tire|3.25-19}} `76-80 <ref name="wps_street_2019"/> | ||
|rear_tire = {{tire|4.00-18}} | |rear_tire = {{tire|4.00-18}} `76-80 <ref name="wps_street_2019"/> | ||
|rake_trail = | |rake_trail = | ||
|wheelbase = 55.71 inches (1415 mm) | |wheelbase = 55.71 inches (1415 mm) | ||
| Line 42: | Line 41: | ||
|fuel_consumption = 4.80 liters/100 km (20.8 km/l or 49.00 mpg) | |fuel_consumption = 4.80 liters/100 km (20.8 km/l or 49.00 mpg) | ||
|turning_radius = | |turning_radius = | ||
|related = | |related = [[BMW R45]] | ||
|competition = | |competition = | ||
}} | }} | ||
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==History== | ==History== | ||
At the end of 1954, [[BMW|BMW]] dropped its existing trio of flat twins - the R51/3, R67/2 and R68 - replacing them with the [[BMW R50|BMW R50]] and [[BMW R69|BMW R69]]. The engines were little altered, significant changes being concentrated on the frame and cycle parts, which now featured an Earles-type leading link front fork and swinging-arm rear suspension. The R67/2, a lower-compression model much favoured by sidecarists, was not replaced until the arrival for 1956 of the R60, which used a low-compression version of the R69 engine. The sidecar market remained an important one for BMW, and the new front fork's bottom link incorporated alternative mounting points giving suitable trail should a 'chair' be attached. In 1960 the flat-twins range was revised as the '/2', most of the changes being inside the engine which received a strengthened crankcase and crankshaft, hard-chromed piston rings, improved internal ventilation, new cam followers and a stronger clutch assembly. The R60/2's compression ratio went up from 6.5:1 to 7.5:1, boosting peak power to 30PS (29.6hp SAE). Towards the end of production, the telescopic front fork developed for the forthcoming '/5' range became available as an option on machines sold in the North American market, models so-equipped being designated 'US'. | At the end of 1954, [[BMW|BMW]] dropped its existing trio of flat twins - the [[BMW R51|R51/3]], [[BMW R67|R67/2]] and [[BMW R68|R68]] - replacing them with the [[BMW R50|BMW R50]] and [[BMW R69|BMW R69]]. The engines were little altered, significant changes being concentrated on the frame and cycle parts, which now featured an Earles-type leading link front fork and swinging-arm rear suspension. The R67/2, a lower-compression model much favoured by sidecarists, was not replaced until the arrival for 1956 of the R60, which used a low-compression version of the R69 engine. The sidecar market remained an important one for BMW, and the new front fork's bottom link incorporated alternative mounting points giving suitable trail should a 'chair' be attached. In 1960 the flat-twins range was revised as the '/2', most of the changes being inside the engine which received a strengthened crankcase and crankshaft, hard-chromed piston rings, improved internal ventilation, new cam followers and a stronger clutch assembly. The R60/2's compression ratio went up from 6.5:1 to 7.5:1, boosting peak power to 30PS (29.6hp SAE). Towards the end of production, the telescopic front fork developed for the forthcoming '/5' range became available as an option on machines sold in the North American market, models so-equipped being designated 'US'. | ||
==Long Running, Smooth Running== | ==Long Running, Smooth Running== | ||
| Line 124: | Line 123: | ||
==1971== | ==1971== | ||
< | |||
<gallery mode='packed-hover'> | |||
File:1971-BMW-R60-5-Silver-8741-0.jpg|left|thumb|1971 BMW R60/5 in Silver | |||
File:1971-BMW-R60-5-Silver-8741-1.jpg|left|thumb|1971 BMW R60/5 in Silver | |||
File:1971-BMW-R60-5-Silver-8741-2.jpg|left|thumb|1971 BMW R60/5 in Silver | |||
File:1971-BMW-R60-5-Silver-8741-3.jpg|left|thumb|1971 BMW R60/5 in Silver | |||
File:1971-BMW-R60-5-Silver-8741-4.jpg|left|thumb|1971 BMW R60/5 in Silver | |||
File:1971-BMW-R60-5-Silver-8741-5.jpg|left|thumb|1971 BMW R60/5 in Silver | |||
File:1971-BMW-R60-5-Silver-8741-6.jpg|left|thumb|1971 BMW R60/5 in Silver | |||
</ | File:1971-BMW-R60-5-Silver-8741-7.jpg|left|thumb|1971 BMW R60/5 in Silver | ||
</gallery> | |||
==1972== | ==1972== | ||
<gallery mode='packed-hover'> | |||
< | File:1972-BMW-R605.jpg|left|thumb|1972 BMW R60/5 | ||
File:1972-bmw-r605-0.jpg|1972 BMW R60/5 | |||
File:1972-bmw-r605-1.jpg|1972 BMW R60/5 | |||
File:1972-bmw-r605-2.jpg|1972 BMW R60/5 | |||
File:1972-bmw-r605-3.jpg|1972 BMW R60/5 | |||
File:1972-bmw-r605-4.jpg|1972 BMW R60/5 | |||
</gallery> | |||
*Spark Plug: NGK [[NGK BP7ES|BP7ES]] | *Spark Plug: NGK [[NGK BP7ES|BP7ES]] | ||
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==1974== | ==1974== | ||
< | <gallery mode='packed-hover'> | ||
File:1974-BMW-R60-6-Black-6141-0.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-6-Black-6141-1.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-6-Black-6141-2.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-6-Black-6141-3.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-6-Black-6141-4.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-6-Black-6141-5.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-6-Black-6141-6.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-6-Black-6141-7.jpg|left|thumb|1974 BMW R60/6 in Black | |||
File:1974-BMW-R60-Silver-9783-0.jpg|left|thumb|1974 BMW R60/6 in Silver | |||
File:1974-BMW-R60-Silver-9783-1.jpg|left|thumb|1974 BMW R60/6 in Silver | |||
File:1974-BMW-R60-Silver-9783-2.jpg|left|thumb|1974 BMW R60/6 in Silver | |||
File:1974-BMW-R60-Silver-9783-3.jpg|left|thumb|1974 BMW R60/6 in Silver | |||
File:1974-BMW-R60-Silver-9783-4.jpg|left|thumb|1974 BMW R60/6 in Silver | |||
</ | File:1974-BMW-R60-Silver-9783-5.jpg|left|thumb|1974 BMW R60/6 in Silver | ||
</gallery> | |||
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* [https://motopixel.org/pixel/le-gendarme-de-saint-tropez#bmw-r60 Le gendarme de Saint-Tropez] | * [https://motopixel.org/pixel/le-gendarme-de-saint-tropez#bmw-r60 Le gendarme de Saint-Tropez] | ||
== References == | |||
{{reflist}} | |||
{{BMW}} | |||
[[Category:Classic motorcycles]] | [[Category:Classic motorcycles]] | ||
[[Category:BMW motorcycles]] | [[Category:BMW motorcycles]] | ||
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[[Category:1970s motorcycles]] | [[Category:1970s motorcycles]] | ||
[[Category:1950s motorcycles]] | [[Category:1950s motorcycles]] | ||