BMW R50US
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BMW R50 | |
Manufacturer | |
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Also called | R50 2, R50US, R50 5, R50 OS, R 50 |
Production | 1967 - 69 |
Engine | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
Compression ratio | 7.5:1 |
Ignition | Battery ignition |
Transmission | 4 Speed |
Frame | Double loop steel tubular frame |
Suspension | Front: Telescopic fork Rear: Long swing arm with suspension units and oil pressure shock absorbers |
Brakes | Front: ∅200mm Drum, duplex full hub Rear: ∅200mm Drum, simplex full hub |
Front Tire | 3.50 -18" |
Rear Tire | 4.00 -18" |
Weight | |
Fuel Capacity | 17 liters / 4.49 US gal |
Manuals | Service Manual |
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.. The engine featured a 7.5:1 compression ratio.
Drive[edit | edit source]
Power was moderated via the Single plate saucer spring, dry.
Chassis[edit | edit source]
It came with a 3.50 -18" front tire and a 4.00 -18" rear tire. Stopping was achieved via ∅200mm Drum, duplex full hub in the front and a ∅200mm Drum, simplex full hub in the rear. The front suspension was a Telescopic fork while the rear was equipped with a Long swing arm with suspension units and oil pressure shock absorbers. The R50US was fitted with a 17 liters / 4.49 US gal fuel tank.
Photos[edit | edit source]
Overview[edit | edit source]
BMW R 50 US
Make Model | BMW R 50 US |
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Year | 1967 - 69 |
Engine Type | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
Displacement | 494 cc / 30.1 cu in. |
Bore X Stroke | 68 x 68 mm |
Compression | 7.5:1 |
Cooling System | Air cooled |
Induction | 2 x Bing 1/24/45 - 1/24/46 carburetors |
Ignition | Battery ignition |
Starting | Electric & kick |
Clutch | Single plate saucer spring, dry |
Max Power | 19.4 kW / 26 hp @ 5800 rpm |
Transmission | 4 Speed |
Final Drive | Shaft |
Gear Ratio | 1st 4.17 / 2nd 2.73 / 3rd 1.95 / 4th 1.54:1 |
Frame | Double loop steel tubular frame |
Front Suspension | Telescopic fork |
Rear Suspension | Long swing arm with suspension units and oil pressure shock absorbers |
Front Brakes | ∅200mm Drum, duplex full hub |
Rear Brakes | ∅200mm Drum, simplex full hub |
Front Tire | 3.50 -18" |
Rear Tire | 4.00 -18" |
Wet-weight | 195 kg / 429 lbs |
Fuel Capacity | 17 liters / 4.49 US gal |