Start of Production

1935

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End of Production

1937

Numbers Produced

434

Price

2,040 RM

Engine

 

Internal Designation

M 60

Motor Type

Four-stroke two cylinder flat twin

Bore x Stroke

83 x 68 mm (3.26 x 2.67 In)

Displacement

736 cc

Max Power

33 hp at 5,000 rpm

Compression Ratio

6.5 : 1

Valves

OHV

Carburation System

2 x carburettor Amal 76/424

Engine Lubricating System

Forced feed lubrication

Oil Pump

Gear pump



Power Transmission

 

Clutch

Double plates, dry

Number of Gears

4

Shifting

Manual

Gearbox Ratios

3.18 / 2.06 / 1.42 / 1.09

Rear Wheel Ratio

1 : 4.07 (1 : 4.75 with sidecar)

Bevel/Crownwheel

14 / 57 teeth (12 / 57 with sidecar)



Electrical System

 

Ignition System

Battery

Generator

Bosch B 242 RS 108

Spark Plugs

Bosch M175 T1






Chassis

 

Designation

F 66

Frame

Twin loop pressed steel frame

Front wheel suspension

Telescopic fork

Rear wheel suspension

Rigid

Wheel rims

3 x 19

Tyres, Front

3.5 x 19

Tyres, Rear

3.5 x 19

Brakes, Front

Drum brake 200 mm / 7.87 in diameter

Brakes, Rear

Drum brake 200 mm / 7.87 in diameter




Dimensions/Weights

 

Length x Width x Height

2100 x 900 x 940 mm (82.67 x 3.54 x 37.00 in)

Wheel Base

1380 mm / 54.33 in

Fuel Tank Capacity

14 litres / 3.07 gal / 3.69 gal US

Unladen Weight with Full Tank

Approx. 165 Kg / 363 lb (without consumables)

Load Rating

Approx. 210 Kg / 462 lb

Fuel Consumption

4.5 - 5 litres per 100 Km / 62 - 56 mpg / 52 - 47 mpg US

Oil Consumption

Approx. 1 - 2 litres per 1,000 Lm

Top Speed

140 Kph / 87 mph (120 Kph / 74 mph with original sidecar)

Information kindly supplied by P.Hawksley

www.bmbikes.co.uk