BMW R20 1937 - Motorcycle specifications, reviews, technical data

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presentation of the R20 1937

The BMW R20 is the successor to the R2, with a number of significant changes. The frame, fork and engine were all new, marking a real break with the previous generation of single-cylinder bikes. The R20 cost 725 Reichsmarks when it came out in 1936, and owed part of its success to the fact that it could be driven without a license. This BMW was intended to be affordable: its price was half that of the 500 R5, and it was presented as an economical vehicle.
The bike had no rear suspension. It did, however, feature a telescopic fork. Approximately 5,000 examples were produced before a change in legislation precipitated its replacement.

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Published on 10/12/20
by Greg

Key facts BMW R20 (1937) : What you need to know before you buy

Prices

	Basic version
France	€

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Model sold in 1937 1938

Replaced by

R20 1938

Performance

Max speed : 95 km/h (59 mph)
Average fuel consumption : 2.75 liters/100km (0.86 mpg)
Estimated range : 436 km (271 miles)
Calculated range until tank is empty, not verified.

Specifications BMW R20 1937

Chassis: Frame : double tubular steel cradle; Fuel capacity : 12 liters (3.17 US gallons); Length : 2,000 mm (78.74 in); Width : 800 mm (31.50 in); Min height : 920 mm (36.22 in); Wheelbase : 1,330 mm (52.36 in); Weight when fully loaded : 130 kg (287 lb)

Front axle: Telescopic fork Ø nc; drum brakes Ø 160 mm (6.3 in); Front tire : 3.00 - 19 → Order this type of tire

Transmission: 3 stage gearbox; Secondary cardan shaft

Rear axle: rigide; drum brakes Ø 180 mm (7.09 in); Rear tire : 3 / 0 - 19 → Order this type of tire

Motor: single-cylinder , 4 strokes; 1 carburettor Ø 18.2 mm; Cooling system : by air; 2 valves; 192 cc; 8 ch (7.90 hp) to 5,400 rpm; Power-to-weight ratio : approximately 15.06 kg/ch; Compression : 6 : 1

Practical information

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Models

1938

1937

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FAQ Your frequently asked questions about the R20 1937

What is the power of the R20 1937?: The R20 1937 develops a power of 8 ch (7.90 hp)
What is the maximum speed of the R20 1937?: The R20 1937 is capable of reaching a top speed of 95 km/h (59 mph) on the track.
What is the weight of the R20 1937?: The R20 1937 has a a weight when fully loaded of 130 kg (287 lb).
What is the fuel consumption of the R20 1937?: Average fuel consumption is estimated at 2.75 l/100km (0.86 mpg) according to the WMTC cycle.
What is the price of the R20 1937?: , in France

Motorcycle specifications BMWR20 1937

presentation of the R20 1937