Ducati 900SS (1989-90) vs Ducati 125 Sport (1965-67) vs Ducati 250 Mach 1 (1964-66) vs Ducati GT 1000 Classic (2006) vs Ducati Monster 1200S Black (2020) vs Ducati 100 Brio and 100/25 Brio (1964-1966)

Comparison technical specifications

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Make:	Ducati	Ducati	Ducati	Ducati	Ducati	Ducati
Model:	900SS	125 Sport	250 Mach 1	GT 1000 Classic	Monster 1200S Black	100 Brio and 100/25 Brio
Years:	1989-90	1965-67	1964-66	2006	2020	1964-1966
Engine:	Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valves per cylinder, belt driven	Four stroke, single-cylinder, OHC, bevel gear driven	Four stroke, single cylinder, Desmo SOHC, bevel gear-drive	Four stroke, 90° “L” twin cylinder, desmodromic 2 valves per cylinder, operated by four rocker arms (two opening rockers and 2 closing rockers) SOHC. Driven by the crankshaft through spur gears, timing belt pulleys and toothed timing belts	Four stroke, Testastretta 11° L-Twin, DOHC, 4 Desmodromically actuated valves per cylinder	Two-stroke, single cylinder, piston port
Capacity:	904 cc / 55.2 cu in	124.4 cc / 7.6 cu in	248.6 cc / 15.2 cu in	992 cc / 60.5 cu in	1198 cc / 72.9 cu-in	94 cc / 5.7 cu in
Bore x Stroke:	92 x 68 mm	55.2 x 52 mm	74 x 57.8 mm	94 x 71.5 mm	106 x 67.9 mm	51 x 46 mm
Compression Ratio:	9.2:1	8.0:1	10:1	10.0:1	13.0:1	100 Brio: 8.5:1 100/25 Brio: 10:1
Cooling System:	Air cooled	Air cooled	Air cooled	Air cooled	Liquid cooled	Fan cooled
Induction:	Weber 44DCNF 118	Dell'Orto UB20BS carburetor	Dell'Orto SS1 29A carburetor	Marelli electronic fuel injection, 45mm throttle body	Electronic fuel injection system, 56mm oval throttle bodies with full Ride-by-Wire	Dell'Orto SHB 18/16 carburetor
Ignition:	Electronic inductive discharge	Battery and coil, 6V 40W generator	Battery and coil, 6V 60W generator	Marelli electronic	Marelli electronic	6V 30W flywheel magneto, 16-18
Starting:	Electric	Kick	Kick	Electric	Electric	Kick
Max Power:	61.8 kW / 84 hp @ 7000 rpm (rear tyre 53.7 kW / 73hp @ 8100 rpm)	7.5 kW / 10 hp @ 8500 rpm	20.6 kW / 28 hp @ 8500 rpm	61 kW / 81.8 hp @ 8,000 rpm	147 hp / 108 kW @ 9250 rpm	5.3 kW / 7.2 hp @ 7000 rpm
Transmission:	6 Speed	4 Speed	5 Speed	6 Speed	6 Speed with Ducati Quick Shift up & down (DQS)	Three Speed
Final Drive:	Chain	Chain	Chain	Chain, gear ration:15/39	Chain, front sprocket Z=15, rear sprocket Z=41	Chain
Front Suspension:	40mm Marzocchi fully adjustable inverted fork	Hydraulically damped telescopic forks, Marzocci	Hydraulic telescopic fork, Ducati 31.5 mm	43 mm Marzocchi upside down fork	48 mm Öhlins fully adjustable USD fork	Swinging shackle fork
Rear Suspension:	Progressive type with adjustable Marzocchi monoshock	Swingarm, dual shocks, 3-way adjustable	Swingarm, dual shocks, Marzocchi 295 mm, three-way adjustable	Twin shock absorbers, spring preload	Progressive linkage with fully adjustable Öhlins monoshock, aluminium single-sided swingarm	Swingarm, twin rubber shocks
Front Brakes:	2 x 320mm discs	Drum	Drum, 180 mm	2x 320 mm Semi-floating discs, 4 piston calipers	2 x 320 mm Semi-floating discs, radially mounted Monobloc Brembo Evo M50 callipers, 4-pistons, radial pump with Bosch ABS as standard	Drum, 105 mm
Rear Brakes:	Single 245mm disc	Drum	Drum, 160 mm	Single 245 mm disc, 2 piston caliper	Single 245mm disc, 2-piston floating calliper with Bosch ABS as standard equipment	Drum, 105 mm
Front Tyre:	120/70-17	2.50 - 17 CEAT	2.50-18 CEAT	120/70 ZR17	120/70 - ZR17 Pirelli Diablo Rosso III	2.45 x 8
Rear Tyre:	170/60-17	2.75 - 17 CEAT	2.75-18 CEAT	180/55 ZR17	190/55 - ZR17 Pirelli Diablo Rosso III	3.50 x 8
Dry Weight:	180 kg / 397 lbs	100.5 kg / 221 lbs	116 kg / 255 lbs	185 kg / 407.8 lbs	185 kg / 408 lbs	80 kg / 176 lbs