Suzuki RG 125 Gamma (1986-87) vs Suzuki Gixxer SF250 (2018) vs Suzuki Boulevard C90 B.O.S.S (2013-14) vs Suzuki DR 650S (2019) vs Suzuki SFV 650 Gladius (2010) vs Suzuki GS 550M Katana (1981)

Comparison technical specifications

Add bike	Remove bike	Remove bike	Remove bike	Remove bike	Remove bike	Remove bike
Make:	Suzuki	Suzuki	Suzuki	Suzuki	Suzuki	Suzuki
Model:	RG 125 Gamma	Gixxer SF250	Boulevard C90 B.O.S.S	DR 650S	SFV 650 Gladius	GS 550M Katana
Years:	1986-87	2018	2013-14	2019	2010	1981
Engine:	Two stroke, single cylinder, crankcase reed valve	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, 54° V-twin, SOHC, 3 valves per cylinder	Four stroke, single cylinder. SOHC, 4 Valve per cylinder.	Four stroke, 90°-V-twin, DOHC, 4 valves per cylinder.	Four stroke, transverse four cylinders, DOHC, 2 valve per cylinder.
Capacity:	124 cc / 7.6 cu-in	249 cc / 15.2 cu in	1462 cc / 89.2 cu-in	644 cc / 39.3 cu in	645 cc / 39.3 cu in	549 cc / 33.5 cu in
Bore x Stroke:	54 x 54 mm	76.0 x 54.9 mm	96 x 101 mm	100 x 82 mm	81 x 62.6 mm	56 x 55.8 mm
Compression Ratio:	7.4:1		9.5:1	9.5:1	11.5:1	8.6:1
Cooling System:	Liquid cooled	Oil cooled	Liquid cooled	Air/oil cooled	Liquid cooled	Air cooled
Induction:	28mm Mikuni carburetor	EFI fuel injection	Fuel injected	Mikuni BST40	Fuel Injection, 39mm throttle bodies	4 x 34mm Mikuni carburetors
Ignition:	CDI	ECU	Digital transistorized	Electronic Ignition	Electronic ignition (Transistorized)	Transistorized
Max Power:	18.4 kW / 25 hp @ 9.500 rpm	26 hp / 19.3 kW @ 9000 rpm	49.2 kW / 66 hp @ 4800 rpm	32 kW / 43.5 hp / @ 6400 rpm (at rear tyre 27.9 kW / 37.4 hp @ 6500 rpm)	53 kW / 71 hp @ 9000 rpm	40 kW / 53.7 hp @ 9400 rpm
Max Torque:	19.1 Nm / 1,95 kg-m / 14.1 lb-ft @ 8500 rpm.	30.6 Nm / 22.6 lb-ft @ 7500 rpm	115 Nm /11.7 kgf-m / 84.8 ft-lbs @ 2800 rpm	54 Nm / 5.51 kg-m / 39.8 lb-ft@ 4600 rpm	63.1 Nm / 6.4 kgf-m / 46.5 lb-ft @ 7600 rpm	41 Nm / 4.4 kgf-m / 32lb-ft @ 8200 rpm
Transmission:	6 Speed	6 Speed	5 Speed	5 Speed	6 Speed	6 Speed
Final Drive:	Chain	Chain	Shaft	Chain, 525 links	Chain	Chain, Daido D.I.D 530 'O' Ring, approx. 100 links
Front Suspension:	30 mm Telescopic forks	Telescopic, coil spring, oil damped, non-adjustable forks	Telescopic, coil springs, oil damped	Telescopic, leading axle, oil damped	Telescopic fork, coil spring, oil damped	35 mm Air assisted forks, 2-way spring preload adjustable
Rear Suspension:	Single shock linkage	Monoshock, Swing arm type	Link type, coil spring, oil damped	Link-type, fully adjustable spring preload, gas/oil damped, adjustable compression damping	Link type, coil spring, oil damped, spring preload 7-step adjustable	Dual shocks, adjustable spring preload and rebound damping
Front Brakes:	Single 230 mm disc	Single 300 mm disc 2 piston caliper	Dual 300 mm discs, 4 piston caliper	Single 280 mm disc, 2 piston caliper	2 x 290 mm Discs, 2 piston calipers, ABS	2 x 275mm discs, 1 piston calipers
Rear Brakes:	130 mm Drum	Single 240 mm disc 1 piston caliper	Single 180 mm disc, 2 piston caliper	Single 230 mm disc, 2 piston caliper	Single 240 mm disc, 1 piston caliper, ABS	Single drum
Front Tyre:	80/100 S16	110/70-R17	130/80-17M/C 65H, tubeless	90/90-21	120/70 ZR17	3.25-19
Rear Tyre:	90/90 S18	150/60-R17	200/60-16M/C 79H, tubeless	120/90-17	160/60 ZR17	3.75-18
Dimensions:	Length 2 030 mm / 79.9 in Width 660 mm / 26.0 in Height 1155 mm / 45.5 in	Length: 2010 mm / 79.1 in Width: 740 mm / 29.1 in Height: 1035 mm / 40.7 in	Length: 2560 mm / 100.8 in Width: 990 mm / 39.0 in	Length 2255 mm / 88.8 in Width 865 mm / 34.1 in Height 1195 mm / 47.0 in	Length 2130 mm / 83. 9 in Width 760 mm / 29.9 in Height 1090mm / 42.9 in	Length 2100 mm / 82.7 in Width 720 mm / 28.3 in
Wheelbase:	1310 mm / 51.6 in	1345 mm / 52.9 in	1675 mm / 65.9 in	1490 mm / 58.7 in	1445mm / 56.9 in	1435 mm / 56.5 in
Seat Height:	730 mm / 28.7 in	800 mm / 31.5 in	720 mm / 28.3 in	885 mm / 34.8 in.	785 mm / 30.9 in	740 mm / 29.1 in
Fuel Capacity:	12 Litres / 3.2 US gal / 2.6 Imp gal	12 Litres / 3.2 US gal	18 Litres / 4.8 US gal	13 Litres / 3.4 US gal / 2.9 Imp gal (CA model 12 Liter / 3.2 US gal / 2.6 Imp gal)	14.5 Litres / 3.8 US gal / 3.2 Imp gal	22 Litres / 5.8 US gal / 4.8 Imp gal