Ducati 900 Monster (1995-96) vs Ducati 400SS Junior (1989-90) vs Ducati Desmosedici RR (2006) vs Ducati Monster S4RS Testastretta (2008)

Comparison technical specifications

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Make:	Ducati	Ducati	Ducati	Ducati
Model:	900 Monster	400SS Junior	Desmosedici RR	Monster S4RS Testastretta
Years:	1995-96	1989-90	2006	2008
Engine:	Four stroke, 90°“L” twin cylinder, SOHC desmodromic 2 valve per cylinder.	Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valve per cylinder.	Four stroke, "L" -four cylinder, DOHC, Desmodromic, 4 valves per cylinder, gear driven camshafts	Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valves per cylinder
Capacity:	904 cc / 55.2 cu in	398 cc / 24.3 cu in	989 cc / 60.4cu in	998 cc / 60.9 cu in
Bore x Stroke:	92 x 68 mm	70.5 x 51 mm	86 x 42.56 mm	100 x 63.5 mm
Compression Ratio:	9.2:1	10.0:1	13.5:1	11.4:1
Cooling System:	Air cooled	Air cooled	Liquid-cooled	Liquid cooled
Induction:	2 x 38 mm Mikuni BDST 38-B129 carburetors	Mikuni CVK-V36 carburetor	Four 50 mm Magneti Marelli throttle bodies, 12-hole "microjet"with injectors over throttle, manual idle control;	Marelli electronic fuel injection, 50 mm throttle bodies
Ignition:	Kokusan electronic inductive discharge	Kokusan electronic	Digital CDI	Marelli Electronic
Starting:	Electric	Electric	Electric	Electric
Max Power:	58.8 kW / 80 hp @ 7000 rpm	30.9 kW / 42 hp @ 10000 rpm	147.1 kW / 200 hp @ 13800 rpm	95.7 kW / 130 hp @ 9500 rpm
Transmission:	6 Speed	6 Speed	6-Speed; Cassette type	6 Speed
Final Drive:	Chain	Chain	Chain	Chain; front sprocket 15; rear sprocket 42
Front Suspension:	Showa GD 41, inverted type, adjustable, 41 mm stanchions	41mm Marzocchi inverted telescopic fork, M1BB	Öhlins 'FG353' PUFF forks USD 43 mm pressurized, with preload, rebound and compression adjustment, TiN coated sliders	Öhlins 43 mm upside-down fully adjustable fork with TiN surface treatment
Rear Suspension:	Boge progressive type with adjustable monoshock	Cantilever swingarm, Marzocchi PBS1R monoshock, preload and rebound damping	Öhlins rear shock, with rebound, low/high speed compression adjustment, and hydraulic preload adjustment	Progressive linkage with fully adjustable Öhlins monoshock. Aluminium single-sided swingarm
Front Brakes:	2 x 320 mm Discs, 4 piston calipers	2 x 280 mm Discs	Two Brembo radial "monoblock" calipers with four 34 mm pistons; two semi-floating 330 mm x 6 mm discs, with machined flange: the same as GP6 wet race set-up	2 x 320 mm Discs, 4 piston calipers, radially mounted, Brembp
Rear Brakes:	Single 220 mm disc, 2 piston caliper	Single 260 mm disc	240 mm Fixed disc, floating caliper with two 34 mm pistons	Single 245 mm disc, 2 piston caliper
Front Tyre:	120/70-17	130/60 VR16	Bridgestone 120/70 R17	120/70 ZR17
Rear Tyre:	170/60-17	160/60 VR16	Bridgestone 200/55 R16	180/55 ZR17
Wheelbase:	1430 mm / 56.3 in	1450 mm / 57.1 in	1430 mm / 56.3 in	1440 mm / 56.7 in
Seat Height:	770 mm / 30.3 in	750 mm / 29.5 in	830 mm / 32.7 in	803 mm / 31.6 in
Dry Weight:	184 kg / 405 lbs	174 kg / 384 lbs	171 kg / 377 lbs	177 kg / 390lbs