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BMW R50US Specifications

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Start of Production

1967

BMW R50US

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End of Production

1969

Numbers Produced

19,036  (contained in figures for R50/2

Numbers Produced

401?

Price

US $1,224

Engine

 

Internal Designation

252/3

Motor Type

Four-stroke two cylinder flat twin

Bore x Stroke

68 x 68 mm (2.67 x 2.67 in)

Displacement

494 cc

Max Power

26 hp at 5,800 rpm

Compression Ratio

7.5 : 1

Valves

OHV

Carburation System

2 x carburettor, Type Bing 1/24/149 - 1/24/150

Engine Lubricating System

Forced feed lubrication

Oil Pump

Gear pump

Power Transmission

 

Clutch

Single plate, saucer spring, dry

Number of Gears

4

Shifting

Foot shifting

Gearbox Ratios

4.17 / 2.73 / 1.94 / 1.54

Rear Wheel Ratio

1: 3.375

Bevel/Crownwheel

8 / 27 teeth

Electrical System

 

Ignition System

Magneto ignition

Generator

Bosch LJ/CGE 60/6/1700 R

Spark Plugs

Bosch W 240 T1

Chassis

 

Designation

245/3

Frame

Double loop steel tubular frame

Front wheel suspension

Telescopic fork

Rear wheel suspension

Long swing arm with suspension units and oil pressure shock absorbers

Wheel rims

Deep bed 2.15B x 18

Tyres, Front

3.5 x 18

Tyres, Rear

4 x 18

Brakes, Front

Drum brake 200 mm / 7.87 in diameter duplex full hub

Brakes, Rear

Drum brake 200 mm / 7.87 in diameter simplex full hub

Dimensions/Weights

 

Length x Width x Height

2137 x 660 x 980 mm (84.13 x 25.98 x 38.58 in)

Wheel Base

1427 mm / 56.18 in

Fuel Tank Capacity

17 litres / 3.73 gal / 4.49 gal US

Unladen Weight with Full Tank

195 Kg / 429 lb

Idle/Riding Noise

72 dB(A), 84 dB(A)

Load Rating

360 Kg / 792 lb

Fuel Consumption

5.1 litres 100 Km approx 100 Km / 55 mpg / 46 mpg US

Oil Consumption

0.5 - 1 litres per 1,000 Km approx.

Top Speed

140 Kph / 87 mph

 

 

Member of BM Riders Club, The BMW Club, BMF, BMWMOA, The Airheads and The Poverty Riders

Check out my other sites at: www.bmridersclub.com & www.boxerman.co.uk