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)

Comparison technical specifications

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Make:	Suzuki	Suzuki	Suzuki	Suzuki	Suzuki
Model:	RG 125 Gamma	Gixxer SF250	Boulevard C90 B.O.S.S	DR 650S	SFV 650 Gladius
Years:	1986-87	2018	2013-14	2019	2010
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.
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
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
Compression Ratio:	7.4:1		9.5:1	9.5:1	11.5:1
Cooling System:	Liquid cooled	Oil cooled	Liquid cooled	Air/oil cooled	Liquid cooled
Induction:	28mm Mikuni carburetor	EFI fuel injection	Fuel injected	Mikuni BST40	Fuel Injection, 39mm throttle bodies
Ignition:	CDI	ECU	Digital transistorized	Electronic Ignition	Electronic ignition (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
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
Transmission:	6 Speed	6 Speed	5 Speed	5 Speed	6 Speed
Final Drive:	Chain	Chain	Shaft	Chain, 525 links	Chain
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
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
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
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
Front Tyre:	80/100 S16	110/70-R17	130/80-17M/C 65H, tubeless	90/90-21	120/70 ZR17
Rear Tyre:	90/90 S18	150/60-R17	200/60-16M/C 79H, tubeless	120/90-17	160/60 ZR17
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
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
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
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