Ducati 900 SS (1977) vs Ducati 500GTL (1979-81) vs Kawasaki KZ1100D Spectre (1982-83)

Comparison technical specifications

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Make:	Ducati	Ducati	Kawasaki
Model:	900 SS	500GTL	KZ1100D Spectre
Years:	1977	1979-81	1982-83
Engine:	Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven	Four stroke, parallel twin cylinder, SOHC, chain driven, 2 valve per cylinder	Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder.
Capacity:	864 cc / 52.7 cu in	496.9 cc / 30.2 cu in	1089 cc / 66.4 cu-in
Bore x Stroke:	86 x 74.4 mm	78 x 52 mm	72.5 x 66mm
Compression Ratio:	9.5:1	9.6:1	8.9:1
Cooling System:	Air cooled	Air cooled	Air cooled
Induction:	2 x Dell'Orto PHM 40 A, B or C carburetors	Dell'Orto PHF30BS/BD	4x 34mm Mikuni constant-vacuum
Ignition:	Electronic	Points and coil	CDI
Starting:	Kick (electric as an option)	Kick	Electric
Max Power:	49.2 kW / 67 hp @ 7500 rpm	25.7 kW / 35 hp @ 6500 rpm	108 hp @ 8500rpm
Clutch:	Wet, multiplate	Wet, multiplate	Wet, multi-plate
Transmission:	5 Speed	5 Speed	5 Speed
Final Drive:	Chain	Chain	Shaft
Front Suspension:	38 mm Marzocchi fork	35 mm Paioli telescopic fork	38mm Air assisted telescopic forks, 152mm wheel travel.
Rear Suspension:	Marzocchi 310 mm dual shocks, 3-way adjustable	Swing arm, 2 x Marzocchi shocks, 3-way adjustable	Single air shock 4-way adjustable rebound damping, 102mm wheel travel
Front Brakes:	2 x 280mm Disc, 1 piston caliper	2 x 256 mm Brembo discs	2x 270mm discs 1 calipers
Rear Brakes:	Single 229 mm disc	Single 260 mm Brembo disc	Single 270mm disc 1 caliper
Seat Height:	760 mm / 29.9 in	760 mm / 29.9 in	760 mm / 30.0 In
Fuel Capacity:	20 L / 5.3 US gal / 4.4 Imp gal	19 L / 5.0 US gal / 4.2 Imp gal	21.4 Litres / 5.6 US gal
Top Speed:	217 km/h / 135 mph	175 km/h / 109 mph	142 mph / 228 km/h