Engine |
|
Type |
four-stroke, two-cylinder,
horizontally-opposed "Boxer" engine, air-cooled |
Bore/stroke |
82 x 61,5 mm |
Cubic capacity |
649,6 cm3 |
Max power |
27PS (20kW) at
5500 rpm |
Max torque |
43 Nm at 3500 rpm |
Compression ratio |
8,4 : 1 |
Valves per cylinder |
2 |
Valve control |
ohv, using push rod and rocker
arm |
Carburation system |
2 constant depression carburettors Bing
V 64/32/317 - 318 |
Engine lubrication |
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) |
Gear ratios |
4,4 / 2,86 / 2,07 / 1,67 / 1,50
:1 |
Rear wheel ratio |
1 : 3,44 |
Bevel/crown wheel |
9 : 31 teeth |
|
|
Electrical system |
|
Alternator |
Bosch 280
W |
Ignition |
Contact-free
electronic ignition (Bosch) |
Starter |
Bosch 0,7 kW |
Spark plugs |
W 7 DC / Beru 14 - 7 DU / Champion N 9
YC |
|
|
Suspension |
|
Type of frame |
double-loop tubular frame with bolt-on
rear section |
Front suspension |
telescopic fork with hydraulic shock
absorber |
Rear suspension |
BMW Monolever - swinging arm
|
Spring travel |
200 / 170 mm |
Rims front |
1,85 x 21
WM |
Rims rear |
2,50 x 18 WM |
Tyres front |
3,00 - 21 48 R |
Tyres rear |
4,00 - 18 64 R |
Brakes front |
single disc brake Ø 260 mm
|
Brakes rear |
Simplex drum brake Ø 200
mm |
|
|
Dimensions and weights |
|
Length x width x height |
2230 x 820 x 1150 mm |
Wheel base |
1465 mm |
Ground clearance |
218 mm |
Tank capacity |
19,5 l |
Unladen weight, full tank |
198 kg |
Max permissible weight |
398 kg |
Fuel consumption |
5,0 l / 100 km (at constant 90 km/h)
|
Acceleration |
0 - 100 km/h 9,4 s |
Top speed |
146 km/h |
|
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