Montesa 250 Impala Sportback 1969 forward

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Air cooled, 250cc, Single, 2-stroke, Piston controlled inlet port

Power: 20.94 HP (15.4 kW) @ 7000 rpm
Final drive: Chain
Dry weight: 198.4 lbs
Category: Classic
Tags: Touring
Engine and transmission
Engine type: 1 cylinders, 2-stroke, Single
Displacement: 250 cc (15.28 cubic inches)
Bore × stroke: 2.83 inch × 2.36 inch (oversquare - shortstroke)
Cooling system: Air cooled
Power: 20.94 HP (15.4 kW) @ 7000 rpm
Throttle: Cable operated
Valves
Valve train: Piston controlled inlet port, variable
Fuel and ignition
Sparks per cylinder: 1
Fuel supply system: Carburetor
Compression: 9:1
Engine mounting: Vertical
Lubrication system: Mixture
Gear box: Manual 4-speed
Clutch: Wet, multiple discs, cable operated
Final drive: Chain
Starter: Kick-starter
Dimensions
Weight
Dry weight: 198.4 lbs
Chassis and suspension
Frame type: steel, Single cradle frame
Front
Suspension: Cartridge
Brake: Single Drum
Rear
Suspension: twin shock, Swingarm
Brake: Drum
Other
ABS available: No
Fuel capacity: 3.43 gals
Number of riders: 2 persons

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