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Start of Production |
1985 |
Click to View |
|
End
of Production |
1993 |
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Numbers Produced |
8,260 |
|
Price |
8,980 DM |
|
Engine |
|
|
Motor Type |
Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled |
|
Bore x Stroke |
82 x
61.5 mm (3.22 x 2.42 in) |
|
Displacement |
649.6
cc |
|
Max
Power |
48 hp
(35 KW) at 7,250 rpm or 27 hp (20 Kw) at 5500 rpm |
|
Max
Torque |
47.8 Nm
/ 35 ft lb
at 3,500 rpm or 45.5 Nm / 33 ft lb at 3,500 rpm |
|
Compression Ratio |
8.7 : 1
or 8.4 : 1 |
|
Valves
Per Cylinder |
2 |
|
Valve Control |
OHV,
using push rod and rocker arm |
|
Carburation System |
2
constant depression carburettors, Bing 64/32/359 - 64/32/360
or 64/26/317 - 64/26/318 |
|
Engine Lubricating System |
Wet
sump |
|
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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 |
|
Rear Wheel Ratio |
1 : 3.36 or 1 : 3.44 |
|
Bevel/Crownwheel |
11 / 37 teeth
or 9 / 31 |
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Electrical System |
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|
Ignition System |
Contact
free electronic ignition (Bosch) |
|
Alternator |
Bosch
280 W |
|
Starter |
Bosch
0.7 Kw |
|
Spark Plugs |
Bosch W 7 DC / Beru 14-7 DU/ Champion N9YC |
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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 /
121 mm (6.88 / 4.76 in) |
|
Wheel Rims, Front |
MTH
2.50 x 18 E |
|
Wheel
Rims, Rear |
MTH
2.50 x 18 E |
|
Tyres, Front |
90 / 90
18 51 H or 90 / 90 18 51 S |
|
Tyres, Rear |
120 / 90
18 65 H or 120 / 90 18 65 S |
|
Brakes, Front |
Single
disc brake 285 mm / 11.22 in diameter. Brembo 2 piston caliper |
|
Brakes, Rear |
Simplex
drum brake 200 mm / 7.87 in diameter |
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|
|
Dimensions/Weights |
|
|
Length x Width x Height |
2175 x 800 x 1106 mm (85.62 x 31.49 x 43.54 in) |
|
Wheel
Base |
1447 mm
/ 56.96 in |
|
Fuel Tank Capacity |
22
litres / 4.83 gal / 5.81 gal US |
|
Unladen
Weight with Full Tank |
205 Kg
/ 451 lb |
|
Max.
Permissible Weight |
440 Kg
/ 969 lb |
|
Ground
Clearance |
140 mm
/ 5.51 in |
|
Seat
Height (Unladen) |
807 mm (31.8 inches) |
|
Fuel
Consumption |
4.6
or 5.0
litres 100 Km (at constant 90 Kph) / 61 mpg / 51 mpg US or / 56 mpg / 47
mpg US |
|
Top
Speed |
173 Kph
/ 107 mph or 155 Kph / 96 mph |
|
Acceleration 0 - 100 Kph / 62 mph |
6.8 seconds
or 9.9 seconds |
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