Aprilia SXV   Technical Specifications (specifications for the 550 engine appear in brackets)

Engine

77° V twin four stroke. Liquid cooled. Single overhead cam with rocker operated exhaust valves, chain timing drive, 4 valve heads, titanium valves.

Fuel

Lead-free petrol.

Bore x stroke

76 x 49.5 mm (80 x 55 mm)

Total displacement       

449 cc (549 cc).

Compression ratio

12.5:1 (12:1).

Fuel system

Integrated engine management system controlling ignition and fuel injection.

Throttle body: 38 mm. (40 mm)

Ignition

Electronic.

Starting

Electric starting.

Alternator

340 W.

Lubrication

Dry sump with external oil tank. Separate gearbox lubrication.

Gearbox

5 speed. Supermotard gear ratios:

1st 13/30

2nd 15/27 

3rd 16/23

4th 20/23

5th 21/21

Clutch

Multi-plate in oil bath, cable operated.

Primary drive

Spur gears. Transmission ratio: 22/56.

Final drive

Chain. Transmission ratio: 15/48 (16/46).

Frame

Steel perimeter frame with alloy vertical members.

Front suspension

Ø 45 mm upside down fork, double adjustment.

Rear suspension

Box section aluminium swingarm with cast body.

Hydraulic monoshock with compression and rebound adjustment.

Brakes

Front: Ø 270 mm stainless steel disc with radial caliper.

Rear:Æ 240 mm stainless steel disc with radial caliper.

Wheels

Light alloy.

Front: 3.50 x 17”

Rear: 5.50 x 17”

Tyres

Front: 120/70 x 17”

Rear: 180/55 x 17”

Dimensions

Overall length: 2,222 mm

Overall width: 800 mm

Ground clearance: 318 mm

Seat height: 918 mm

Wheelbase: 1,495 mm

Fuel tank

Capacity 7.8 litres