Suzuki GSX-R 750 K3 (2003) vs Gilera KZ 125 (1988-89) vs Yamaha FJR 1300A / AE / AS (ES in USA) (2017) vs Yamaha BT 100 Bulldog (2003) vs Yamaha XT 225 Serow (2004-05) vs Suzuki RG 150R (1997-99)

Comparison technical specifications

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Make:	Suzuki	Gilera	Yamaha	Yamaha	Yamaha	Suzuki
Model:	GSX-R 750 K3	KZ 125	FJR 1300A / AE / AS (ES in USA)	BT 100 Bulldog	XT 225 Serow	RG 150R
Years:	2003	1988-89	2017	2003	2004-05	1997-99
Engine:	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Two stroke, single cylinder, reed valve	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, 75°V-twin, SOHC,	Four stroke, single cylinder, SOHC, 2 valve	Two stroke, single cylinder, DOHC, TSCC, 4 valves
Capacity:	749 c / 45.7 cub. in.	124 ccc / 7.6 cu-in	1298 cc / 79.2 cu-in	1063 cc / 64.8 in	223 cc / 13.6 cu-in	147 cc / 9.0 cu in
Bore x Stroke:	72 x 46 mm	56 x 50.5 mm	79 x 66.2 mm	95 x 75 mm	70 X 58mm	61 x 50.6 mm
Compression Ratio:	12.0:1	13.0;1	10.8:1	8.3:1	9.5:1	6.8:1
Cooling System:	Liquid cooled	Liquid cooled	Liquid cooled	Air coolid	Air cooled	Liquid cooled
Induction:	Fuel injection, 46 mm throttle bodies	28 Dell'Orto PHBH carburetors	Yamaha Electronic Fuel Injection with YCC-T	2x 37mm carbs	34mm Mikuni carburetor	Minuni TM28SS, slingshot type carburetor
Ignition:	Digital DC-CDI	CDI	TCI: Transistor Controlled Ignition	TCI (Transistor Controlled Ignition)	CDI	CDI
Starting:	Electric	Electric	Electric	Electric	Electric & Kick	Kick
Max Power:	102.9 kW / 140 hp @ 12500 rpm	29.3 hp / 21.8 kW @ 9900 rpm	105.7 kW / 146.2 hp @ 8000 rpm	65 hp / 47.4 kW @ 5500 rpm	20 hp / 15 kW @ 8000 rpm	26.8 kW / 36 hp @ 12500 rpm.
Max Torque:	85 Nm / 8.7 kgf-m / 62.7 ft-lb @ 10500 rpm	18 Nm / 13.2 lb-ft @ 10250 rpm	138 Nm / 14,1kgf-m / 101.8 lb-ft @ 7000 rpm	88.2 Nm / 9 kg-m @ 4500 rpm	19 Nm / 14 lb-ft @ 7000 rpm	25 Nm / 2.55 kgf-m / 18.4 lb-ft @ 10 000 rpm
Transmission:	6 Speed, constant mesh	6 Speed	6 Speed	5 Speed	6 Speed	6 Speed, close ratio
Final Drive:	#525 Chain, O-ring sealed, 108 links	Chain	Shaft	Shaft	Chain	Chain, 2.937 (48/16)
Front Suspension:	Inverted telescopic, coil spring, fully adjustable spring preload, rebound and compression damping	Fork traditional 36mm. Antidive adjustable	48mm Upside-down telescopic fork with adjustable preload, compression and rebound damping (AE/AS/ES: Suspension electronically adjustable)	43mm forks preload adjustable,	Telescopic fork	Telescopic fork , preload adjustable
Rear Suspension:	Link-type, gas/oil damped, fully adjustable spring preload and compression damping, 4-way adjustable rebound damping	Hydraulic shock absorber adjustable in spring preload Court Cosso	Single shock, link-type, with adjustable preload and rebound damping (AE/AS/ES: Suspension electronically adjustable)	Rising rate monoshock preload adjustable.	Swingarm rebound adjustable. single shock	Banana shaped swingarm, mono-shock
Front Brakes:	2 x 320 mm Discs, 4 piston calipers	Single 240mm disc 2 piston caliper	2 x 320mm discs, 4 piston calipers, unified brake system, ABS	2x 298mm discs 4 piston calipers	Single 220mm disc	Single 300 mm disc, 4 piston caliper
Rear Brakes:	Single 220 mm disc, 2 piston caliper	Single 240mm disc	Single 282 mm disc, 2 piston caliper, unified brake system, ABS	Single 282mm disc 1 piston caliper	Single disc	Single 210mm disc, 2 piston caliper
Front Tyre:	120/70 ZR17	100/80-16	120/70 ZR17	120/70-17	2.75-21	90/90 -17
Rear Tyre:	180/55 ZR17	120/80-16	180/55 ZR17	170/60-17	120/80-18	110/90 -17
Seat Height:	830 mm / 32.7 in.	760 mm / 29.9 in	805 mm - 825.5 mm / 31.7 in - 32.5 in.	812 mm / 31.9 in	810 mm / 31.9 in	780 mm / 30.7 in
Fuel Capacity:	18 Litres / 4.8 US gal / 4.0 Imp gal		25 Litres / 6.6 gal	20 Litres / 5.2 US gal	9.8 Liters / 2.6 US gal	14 L / 3.7 US gal / 3.1 Imp gal