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 counter-shaft.
Bore and stroke	100 x 84 mm
Displacement	659 cc.
Compression ratio	10:1.
Maximum power at crank	50 HP (37 kW) at 6,250 rpm.
Maximum torque at crank	6.25 kgm ( 61.31 Nm) at 5,200 rpm
Fuel Injection	Integrated electronic engine management system. Electronic fuel injection. 44 mm throttle body.
Ignition	Electronic.
Starting	Electric starter.
Alternator	290 W
Lubrication	Dry sump with oil pump.
Gearbox	5 speed.
Primary drive	Spur gears. Transmission ratio: 36/75.
Final drive	Chain. Transmission ratio: 15/44.
Frame	Steel, open cradle, single spar frame.
Front suspension	45 mm fork. Wheel travel 140 mm.
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.
Brakes	Front: Brembo stainless steel floating disk, Æ 320 mm. Four-pot calliper Rear: stainless steel disk, Æ 240 mm. Floating calliper.
Wheels	Y spoked alloy wheels. Front: 3.50 x 17" Rear: 4.50 x 17"
Tyres	Front: 110/70-17 Rear: 160/60-17
Overall length	2,160 mm
Overall width	810 mm
Ground Clearance	250 mm
Seat height	780 mm
Wheelbase	1,479 mm
Tank	Capacity 16 litres, 3.5 litre reserve.