Suzuki GSX-R 750 (2010) vs Yamaha XMAX 250 (2014-15) vs Yamaha YZF-R 125 (2014) vs KTM RC 390 (2022) vs Yamaha XJ 400 Seca (1980-81) vs Suzuki PE 250 (1981) vs Yamaha XVS 250 V-Star (2016-17) vs Yamaha XV 1900 Roadliner S (2008-09)

Comparison technical specifications

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Make:	Suzuki	Yamaha	Yamaha	KTM	Yamaha	Suzuki	Yamaha	Yamaha
Model:	GSX-R 750	XMAX 250	YZF-R 125	RC 390	XJ 400 Seca	PE 250	XVS 250 V-Star	XV 1900 Roadliner S
Years:	2010	2014-15	2014	2022	1980-81	1981	2016-17	2008-09
Engine:	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, single cylinder, SOHC	Four stroke, single cylinder, SOHC, 4 valve	Four stroke, single cylinder, DOHC with finger followers, 4 valves per cylinder	Four stroke, transverse four cylinder. DOHC	Two stroke, single cylinder, piston and reed valve	Four stroke, V-twin cylinder, SOHC, 2 valves per cylinder.	Four stroke, pushrod 48° V-Twin, OHV, 2 valves per cylinder
Capacity:	749 c / 45.7 cub. in.	249.7 cc / 15.2 cu-in	124 cc / 7.6 cu-in	373 cc / 22.7 cu-in	398 cc / 24.2 cu-in	246 cc / 15.0 cu in	249 cc / 15.1 cu/in	1854 cc / 113 cu-in
Bore x Stroke:	70 x 48.7 mm	69 x 66.8 mm	52 x 58.6 mm	89 x 60 mm	51 х 48.8 mm	67 x 70 mm	49 x 66 mm	100 х 118 mm
Compression Ratio:	12.5:1	11.2:1	11.2:1		9.7:1	7.1:1	10.0:1	9.5:1
Cooling System:	Liquid. High capacity large trapezoidal-shaped radiator which includes compact cooling fan assembly designed for improved air flow.	Liquid cooled	Liquid cooled	Liquid Cooled	Air cooled	Air cooled	Air cooled	Air cooled
Induction:	New 32 bit ECM features 1024 kilobytes of ROM for maximum engine performance working in conjunction with the new S-DMS engine management system	Fuel Injection	Fuel Injection	Bosch Injection	2x 34mm Mikuni carburetor	Mikuni VM36SS carburetor	26mm Mikuni BDS26 carburetor	Twin-bore electronic fuel injection, 43mm throttle bodies and throttle position sensor
Starting:	Electric	Electric	Electric	Electric	Electric	Kick	Electric	Electric
Max Power:	110.3 kW / 148 hp @ 12800 rpm	20.1 hp / 14.7 kW) @ 7500 rpm	11 kW / 15 hp @ 9000 rpm	32 kW / 43 hp @ 9500 rpm	45 hp / 32.8 kW @ 10000 rpm	22.5 kW / 30.5 hp @ 8000 rpm	21 hp / 15.4 kW @ 8000 rpm	98.6 hp / 72.0 kW @ 4250 rpm
Max Torque:	86.3 Nm / 8.8 kgf-m / 64 ft-lb @ 11200 rpm	21 Nm / 15.5 lb-ft @ 6000 rpm	12.4 Nm / 1.25 kg-m @ 8000 rpm	37 Nm / 27.2 lb-ft	3.5 kgf-m / 25 lb-ft@ 8000 rpm	27.5 Nm / 2.79 kgf-m / 20.2 lb-ft @ 7500 rpm	2.1 kgf-m / 15.2 ft-lb @ 6,000 rpm	166.7 Nm / / 17 kg-m / 123 ft-lb @ 2250 rpm
Transmission:	6 Speed, constant mesh	Automatic	6 Speed	6 Speed	6 Speed	5 Speed	5 Speed	5 Speed
Final Drive:	Chain, RK525ROZ5Y, 116 links	Belt	Chain	520 X-Ring	Chain	Chain, DAIDO DID 520UB, 110 links	Chain	Belt
Front Suspension:	Showa inverted 41 mm cartridge front forks fully adjustable for high and low speed compression, spring preload, and rebound damping	Telescopic fork, 110mm wheel travel.	Upside-down telescopic fork, Ø 41 mm	USD WP APEX 43	35mm Telescopic forks	Telescopic phneumatic/coil spring, oil dampened	33 mm Telescopic fork with 140mm wheel travel.	46mm telescopic forks,
Rear Suspension:	Showa 41mm aluminum alloy rear shock with a 16mm rod diameter are fully adjustable for high and low speed compression, spring preload and rebound damping	Unit swing, 95mm wheel travel.	Linked monoshock with spring preload adjustment	WP APEX - Monoshock	Single shock, adjustable spring preload	Swingarm. gas/oil dampened spring, 3-way adjustable	Dual shock Swinging arm with 100mm wheel travel.	Single shock, link-type,
Front Brakes:	2 x 310 mm Discs, radial-mount opposed-four-piston Tokico 4 piston calipers	Single 267mm disc	Single 292mm disc	Single 320 mm disc 4 piston radial fixed calliper	Single disc 1 piston caliper	Drum, internal expanding	Single 282mm disc	2x 298mm discs 4 piston calipers
Rear Brakes:	Single 220 mm disc, Tokico 2 piston caliper	Single 240mm disc	Single 230mm disc	Single 230 mm disc 1 piston floating calliper	Drum	Drum, internal expanding	130mm drum	Single 320mm disc 4 piston caliper
Front Tyre:	120/70 ZR17	120/70-M15	110/80 -17	110/70 R17	3.00-19	3.00-21 4PR	3.00 18	130/70 -18
Rear Tyre:	180/55 ZR17	140/70-M14	130/70 -17	150/60 R17	110 90-18	4.50-18 4PR	130/90-15	190/60 -17
Fuel Capacity:	17 Litres / 4.5 US gal / 3.7 Imp gal	11.8 Liters / 3.3 gal	11.5 Litres / 3.0 gal	13.7 Liters / 3.6 US gal	15 Litres / 3.9 US gal	11.5 Litres / 3.0 US gal / 2.5 Imp gal	9.5 Litres / 2.5 US gal	17 Litres / 4.4 us gal