Engine
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Type
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four-stroke, horizontal four-cylinder in-line engine, liquid-cooled
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Bore/stroke
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67 x 70 mm
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Cubic capacity
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987 cm3
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Max power
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90 PS (66 kW) at 8000 rpm
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Max torque
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86 Nm at 6000 rpm
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Compression ratio
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10,2 : 1
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Valves per cylinder
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2
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Valve control
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DOHC, using drive chain and cup tappets
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Carburation system
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electronic injection, Bosch LE-Jetronic
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Engine lubrication
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wet sump
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Power transmission
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Clutch
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dry single plate
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Number of gears
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5
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Gear selection
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dog-type gearbox (ratchet foot lever)
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Gear ratios
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4,50 / 2,96 / 2,30 / 1,88 / 1,61 :1
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Rear wheel ratio
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1 : 2,91
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Bevel/crown wheel
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11 : 32 teeth
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Electrical system
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Alternator
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12 V / 460 W
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Ignition
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electronic ignition Bosch LE-Jetronic
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Starter
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0,7 kW
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Spark plugs
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Bosch XR 5 DC, Beru 12-5 DU, Champion A 85YC
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Suspension
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Type of frame
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tubular space frame, engine serving as load-bearing component
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Front suspension
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telescopic fork with hydraulic shock absorber
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Rear suspension
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BMW Monolever - swinging arm
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Spring travel
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185 / 110 mm
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Rims front
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2,50 x 18 MT H 2
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Rims rear
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2,75 x 17 MT H 2
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Tyres front
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100/90-V 18 or 100/90-VR 18
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Tyres rear
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130/90-V 17 or 130/90-VR 17
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Brakes front
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dual-disc brake Ø 285 mm
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Brakes rear
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single disc brake Ø 285 mm
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Dimensions and weights
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Length x width x height
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2220 x 920 x 1155 mm
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Wheel base
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1516 mm
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Ground clearance
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175 mm
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Tank capacity
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22 l
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Unladen weight, full tank
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283 kg
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Max permissible weight
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480 kg
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Fuel consumption
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4,4 l / 100 km ( at constant 90 km/h)
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Acceleration
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0 - 100 km/h 4,1 s
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Top speed
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215 km/h
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