Aprilia RX 125C (1993-94) vs Suzuki GSX 400F Katana (1983-84) vs Suzuki Boulevard C50T (2005-06) vs BRP Cam-Am Can-Am Spyder RT -S (2016-17) vs Kawasaki Z 400 (1976-77) vs Suzuki GSX-R 750 (1989)

Comparison technical specifications

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Make:	Aprilia	Suzuki	Suzuki	BRP Cam-Am	Kawasaki	Suzuki
Model:	RX 125C	GSX 400F Katana	Boulevard C50T	Can-Am Spyder RT -S	Z 400	GSX-R 750
Years:	1993-94	1983-84	2005-06	2016-17	1976-77	1989
Engine:	Single cylinder, two stroke, Rotax 123, Gilardoni 2 cylinder/head	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, 45° V-Twin	Rotax 1330 ACE, four stroke, transverse three cylinder, DOHC, 4 valve per cylinder	Four stroke, parallel twin cylinder, SOHC, 2 Valve per cylinder.	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.
Capacity:	124.8 cc / 7.6 cu in	398 cc / 24.3 cu in	805cc / 49.1 cu-in	1330cc / 81.1 cu-in	398 cc / 24.2 cu-in	748 c / 45.6 cub. in.
Bore x Stroke:	54 x 54.5 mm	53 x 45.2 mm	83 x 74.4 mm	84 x 80 mm	64 х 62 mm	73.0 x 44.7 mm
Compression Ratio:	12.5:1	10.2:1	9.4:1	12.2:1	9.4:1	10.9:1
Induction:	VHSB34 LD carburetor	4 x Mikuni BS26SS carburetors	Mikuni BDSR34	Electronic fuel injection and electronic throttle control	2x Keihin CV32 6caburetor	4 x 36 mm Mikuni constant-vacuum carburetors
Starting:	Kick	Electric	Electric	Electric	Electric & kick	Electric
Max Power:	25.7 kW / 34.5 hp @ 10800 rpm	30.8 kW / 41.3 hp @ 10500 rpm	33.6 kW / 45.1 hp @ 4000 rpm	115 hp / 83.9 kW @ 7250 rpm	36 hp / 26.8 kW @ 8500 rpm	80.2 kW / 112 hp @ 11000 rpm
Max Torque:	21.6 Nm / 2.2 kgf-m / 15.9 lb-ft @ 10500 rpm	30.2 Nm / 3.1 kgf-m / 22.3 lb-ft @ 8500 rpm	62 Nm / 6.3 kgf-m / 45.7 ft-lb @ 4000 rpm	130 Nm / 96 lb-ft. @ 5000 rpm	3.3 kgf-m / 23.8 lb-ft @ 7500 rpm	74.5 Nm / 7.6 kgf-m / 54.9 ft-lb @ 10000 rpm
Transmission:	6 Speed	6 Speed	5 Speed	6 Speed (semi-automatic optional)	5 Speed	6 Speed, constant mesh
Final Drive:	#520 Chain, 12T to 17T pinion gear, 49T spur gear	Chain, DAIDO DID50UB, 104 links	Shaft	Belt	Chain	#530 Chain, O-ring sealed, 104 links
Front Suspension:	Marzocchi upside down fork	Telescopic fork, oil dampened	Telescopic forks, coil spring oil damping	SACHS† shocks, Double A-arm with anti-roll bar	Telescopic fork	43mm Telescopic forks adjustable for preload rebound damping
Rear Suspension:	Swingarm with single shock absorber, Aprilia Progressive System with fully adjustable Boge Sachs shock absorber	Swingarm, dual shocks, oil dampened, spring 5-way adjustable	Link-type single shock, 7-way adjustable preload	Swing-arm, Air preload SACHS shock	Swing arm	Full-floater Monoshock adjustable for preload rebound damping
Front Brakes:	Single Ø 250 mm disc	2 x Discs	Single 300 mm disc 2 piston caliper	Single 270mm discs 4 piston caliper per wheel	Single 226mm disc	2 x 310 mm Discs, 4 piston calipers
Rear Brakes:	Single Ø 220mm disc	Single disc	Drum, 180 mm	Single 270mm disc 2 piston caliper, with integrated parking brake	180mm Drum	Single 230 mm disc, 1 piston caliper
Front Tyre:	90/90-21	3.25-S19 4PR	130/90-16M/C 67H	165 / 55 R15	3.25 - S18 4PR	120/70 ZR17
Rear Tyre:	120/80-19	3.75-S18 4PR	170/80-15M/C 77H	225 / 50 R15	3.50 - SIB 4PR	160/60 ZR17
Dry Weight:	105 kg / 231 lbs	179 kg / 395 lbs	246 kg / 542 lbs	450 kg / 1012 lb lbs	175 kg / 386 lbs	195 kg / 430 lbs
Fuel Capacity:	11.5 L / 3.o US gal	15 Litres / 4.0 US gal / 3.3 Imp gal	15.5 Litres / 4.1 US gal	27 Litres / 7.1 US gal	14 Litres / 3.6 US gal	21 Litres / 5.5 US gal