Specifications-
Engine: Single-cylinder four-stroke with light alloy cylinder. Liquid cooling with three way pressurised circuit. Single overhead cam with chain timing drive; four valves. Anti-vibration balancer shaft.
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Fuel: Unleaded fuel.
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Bore x Stroke: 100 x 84 mm
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Total displacement: 660 cc
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Compression ratio: 10:1
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Maximum power at the crank: 48 HP (35 kW) at 6,000 rpm.
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Maximum torque at the crank: 6.01 kgm ( 59 Nm) at 5,000 rpm.
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Fuel system: Integrated electronic engine management system. Electronic fuel injection. 44 mm throttle body.
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Ignition: Electronic.
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Starting: Electric starter.
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Generator: 290 W
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Lubrification: Dry sump with oil pump.
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Gear box: 5 speed. Transmission ratios: 1st 12/30 2nd 16/26 3rd 20/23 4th 22/20 5th 26/20
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Clutch: Multi-plate in oil bath. Cable operated.
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Primary drive: Spur gears. Transmission ratio: 36/75.
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Final drive: Chain. Transmission ratio: 15/44.
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Frame: Steel, open cradle, single spar frame.
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Front suspension: 45 mm fork. Wheel travel 140 mm.
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Rear suspension: High strength steel swingarm. Aprilia Progressive System (APS) rising rate linkages. Sachs hydraulic monoshock with adjustable rebound and preload. Wheel travel 130 mm.
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Brakes: Front: stainless steel floating disc, Æ 320 mm, four piston caliper. Rear: stainless steel disc, Æ 240 mm, two piston caliper.
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Wheels: Alloy wheels with twinned spokes. Front: 3.50 x 17". Rear: 4.50 x 17".
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Tyres: Front: 110/70-17. Rear: 160/60-17.
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Dimensions: Overall length: 2,173 mm Overall width: 810 mm Ground clearance: 250 mm Seat height: 780 mm Wheelbase: 1,479 mm
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Fuel tank capacity: 16 litres (3.5 litre reserve).
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