Start of Production |
1982 |
Click to View |
End
of Production |
1984 |
Numbers Produced |
5,963 |
Price |
9,490 DM |
Engine |
|
Motor Type |
Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled |
Bore x Stroke |
84.8 x 70.6 mm
(3.33 x 2.77 in) |
Displacement |
797.5
cc |
Max
Power |
50 hp
(37 KW) at 6,500 rpm |
Max
Torque |
56.7 Nm / 41 ft lb at 5,000 rpm |
Compression Ratio |
8.2 : 1 |
Valves
Per Cylinder |
2 |
Valve Control |
OHV,
using push rod and rocker arm |
Carburation System |
2
constant depression carburettors, Bing V 64/32/305 -
64/32/306 |
Engine Lubricating System |
Wet
sump |
|
|
Power Transmission |
|
Clutch |
Dry
single plate, with lever action diaphragm spring |
Number of Gears |
5 |
Gear Selection |
Dog
type gearbox (ratchet foot lever) |
Gearbox Ratios |
4.4 /
2.86 / 2.07 / 1.67 / 1.50 : 1 |
Rear Wheel Ratio |
1 : 3.36 |
Bevel/Crownwheel |
11 / 37 teeth |
Back to index |
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Electrical System |
|
Ignition System |
Contact
free electronic ignition (Bosch) |
Alternator |
Bosch
280 W |
Starter |
Bosch
0.7 Kw |
Spark Plugs |
Bosch W 7 D / Beru14-7D / Champion N10Y |
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|
Chassis |
|
Type of
Frame |
Double loop tubular frame
with bolt on rear section |
Front wheel suspension |
Telescopic fork with hydraulic shock absorber |
Rear wheel suspension |
BMW
Monolever swinging arm |
Spring
Travel Front/Rear |
175 /
153 mm (6.88 x 6.02 in) |
Wheel Rims, Front |
1.85 B
19 |
Wheel
Rims, Rear |
2.50 B 18 |
Tyres, Front |
100/90 H
19 |
Tyres, Rear |
120/90 H
18 |
Brakes, Front |
Single
disc brake 260 mm / 10.23 in diameter. Brembo 2 piston caliper |
Brakes, Rear |
Simplex
drum brake 200 mm / 7.87 in diameter |
|
|
Dimensions/Weights |
|
Length x Width x Height |
2180 x 790 x 1150 mm (85.82 x 31.10 x 45.27 in) |
Wheel
Base |
1446 mm
/ 56.92 in |
Fuel Tank Capacity |
19
litres / 4.17 gal / 5.01 gal US |
Unladen
Weight with Full Tank |
198 Kg
/ 436 lb |
Max.
Permissible Weight |
398 Kg
/ 876 lb |
Ground
Clearance |
170 mm
/ 6.69 in |
Seat
Height (Unladen) |
845 mm (33.3 inches) |
Fuel
Consumption |
5.0
litres 100 Km (at constant 90 Kph) / 47 mpg US or 56 mpg / 47 mpg US |
Top
Speed |
174 Kph
/ 108 mph |
Acceleration 0 - 100 Kph / 62 mph |
5.6
seconds |
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Power Graphs
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