Gilera SP01 125 (1988-89) vs Gilera ER 125 (1986-) vs Indian Chieftain Elite Limited (2023) vs Ducati 851 SP2 (1990) vs Triumph Speed 400 (2024) vs Ducati Multistrada 1200S Touring (2014) vs Suzuki GSX 650F (2010) vs Matchless G12 (all models) (1958-66)

Comparison technical specifications

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Make:	Gilera	Gilera	Indian	Ducati	Triumph	Ducati	Suzuki	Matchless
Model:	SP01 125	ER 125	Chieftain Elite Limited	851 SP2	Speed 400	Multistrada 1200S Touring	GSX 650F	G12 (all models)
Years:	1988-89	1986-	2023	1990	2024	2014	2010	1958-66
Engine:	Two stroke, single cylinder, reed valve	Two stroke, single cylinder,	Thunder Stroke 116, 49˚ V-Twin	Four stroke, 90°“L”twin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven	Four stroke, DOHC, single cylinder, 4 valves	Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valves per cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder	Twin cylinder
Capacity:	124 cc / 7.6 cu-in	124 cc / 7.6 cu-in	1890 cc / 116 cu-in	888 cc / 54.2 cu in	398 cc / 24.3 cu-in	1198.4 cc / 73.1 cu in	656 cc / 40.0 cu in	646 cc / 39.4 cub in.
Bore x Stroke:	56 x 50.5 mm	56 x 50 mm	103.2 x 113mm	92 x 64 mm	89.0 x 64.0mm	106 x 67.9 mm	65.5 x 48.7. mm	72 x 79.3 mm
Cooling System:	Liquid cooled	Liquid cooled,	Air / Oil cooled	Liquid cooled	Liquid cooled	Liquid cooled	Liquid cooled	Air cooled
Compression Ratio:	12.5;1	13.4:1	11.0:1	10.7:1	12.1:1	11.5:1	11.5:1	G12/de Luxe: 7.5:1 CS/CSR: 8.5:1
Final Drive:	Chain	Chain	Belt, 152 tooth	Chain	X-ring chain	Chain #530, front sprocket 15; rear sprocket 40	Chain	Chain, 97 links
Front Suspension:	Telescopic forks	Telescopic forks	46mm Telescopic forks	42 mm Öhlins FG 9050 upside-down fork with rebound compression damping adjustable	43mm Showa Big Piston, non-adjustable inverted fork	Sachs 48 mm fully adjustable USD forks. Electronic compression and rebound damping adjustment with Ducati Skyhook Suspension	41mm Forks, coil spring, oil damped, adjustable spring preload	AMC teledraulic fork
Rear Suspension:	Swing arm gas single shock	Alloy swing arm adjustable single shock	Single shock with air adjust	Öhlins DU 8070 single shock with preload and damping adjust	Single shock, fixed damping with the shock adjustable piggy-back reservior	Progressive linkage with fully adjustable Sachs monoshock. Electronic compression and rebound damping adjustment. Electronic spring preload with DSS aluminium single-sided swingarm	Swingarm, link type, coil springs, oil damped, adjustable preload and rebound	Swingarm with twin shocks, Girling
Front Brakes:	Single disc	Single 240mm disc	2 x 300mm Floating rotor 4 piston calipers	2 x 320 mm Disc, 4 piston calipers	Single 300 mm disc with radially mounted 4-piston caliper	2 x 320 mm Semi-floating discs, radially mounted Brembo calipers, 4-piston, 2-pad. ABS as standard equipment	2 x 310 mm Discs, 4-piston Tokico calipers	Drum, 7in. sls
Rear Brakes:	Single disc	Drum	Single 300mm floating rotor 2 piston calipers	Single 245 mm disc, 2 piston caliper	Single 230 mm disc with floating caliper	Single 245 mm disc, 2-piston caliper	Single 240 mm disc, 1 piston caliper	Drum, 7in. sls
Front Tyre:	2.75-21	2.75-21	130/60B19 61H	120/70 x 17	110/70 x R17	120/70 - ZR17	120/70 ZR17	3.25 x 19 in.
Rear Tyre:	4.10-17	4.60-17	180/60R16 80H	180/55 x 17	150/60 x R17	190/55 - ZR17	160/60 ZR17	3.50 x 19 in.