Suzuki RG 125 Gamma (1985) vs Yamaha TZR 250SP (1990) vs Suzuki GZ 125 LC Marauder (2003-05) vs Suzuki RG 185 (1978-79) vs Suzuki GSX-R 600 (2018) vs Yamaha XVZ 1300 Royal Star Venture S (2008-09) vs Suzuki Boulevard C50T (2015-16)

Comparison technical specifications

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Make:	Suzuki	Yamaha	Suzuki	Suzuki	Suzuki	Yamaha	Suzuki
Model:	RG 125 Gamma	TZR 250SP	GZ 125 LC Marauder	RG 185	GSX-R 600	XVZ 1300 Royal Star Venture S	Boulevard C50T
Years:	1985	1990	2003-05	1978-79	2018	2008-09	2015-16
Engine:	Two stroke, single cylinder, crankcase reed valve	Two stroke, parallel twin cylinders, read valve,	Four stroke, 65o V-Twin, OHC, 2 valves	Two stroke, single cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder	Four stroke, 70°V-four cylinder, DOHC, 4 valve per cylinder	Four stroke, 45° V-Twin
Capacity:	124 cc / 7.6 cu-in	249 cc / 15.2 cu-in	124 cc / 7.6 cu in	184 cc / 11.2 cu in	599 c / 36.6 cub. in.	1294 cc / 78.9 cu-in	805cc / 49.1 cu-in
Bore x Stroke:	54 x 54 mm	56.4 x 50 mm	44 x 40.9 mm	49 х 49 mm	67.0 x 42.5 mm	79 х 66 mm	83 x 74.4 mm
Compression Ratio:	7.4:1	5.9:1	10.3:1	7.3:1	12.8:1	10.0:1	9.4:1
Induction:	28mm Mikuni carburetor	2x Mikuni TM28SS carburetor	Carburetor, Mikuni BDS26	Carburetor	EFI, Four 40 mm throttle bodies, 2 valves per body. S-DMS engine management system	4x 32mm Mikuni Constant-Velocity	Mikuni BDSR34
Max Power:	18.4 kW / 25 hp @ 9.500 rpm	50 hp / 36.4 kW @ 10000 rpm	9.8 kW / 13.3 hp @ 10 500 rpm	15.7 kW / 21hp @ 7500 rpm	93.2 kW / 125 hp @ 13500 rpm with maximum RAM air	98 hp / 71.5 kW @ 4750 rpm	39 kW / 52 hp @ 6000 rpm
Max Torque:	19.1 Nm / 1,95 kg-m / 14.1 lb-ft @ 8500 rpm.	35.5 Nm / 26.2 lb-ft @ 9750 rpm	9.8 Nm / 1.0 kgf/m / 7.2 lb-ft @ 9500 rpm	20.6 Nm / 2.1 kgf-m / 15.2 lb-ft @ 6500 rpm	67.7 Nm / 6.9 kgf-m / 49.9 ft-lb @ 11500 rpm, RAM air	123 Nm / 90.7 lb-ft @ 4750 rpm	69 Nm / 7.04 kgf-m / 51 lb-ft @ 3200 rpm
Transmission:	6 Speed	6 speed	5 Speed, constant mesh	5 Speed	6 Speed, constant mesh	5 Speed	5 Speed
Final Drive:	Chain	Chain	Chain	Chain	#525 Chain, 114 links	Shaft	Shaft
Front Suspension:	30 mm Telescopic forks	Telescopic fork adjustable preload	Conventional, oil damped, coil-sprung telescopic	Telescopic fork	Showa Big Piston front-Fork (BPF)	Air assisted telescopic fork	Telescopic forks, coil spring oil damping
Rear Suspension:	Single shock linkage	Coil and gas spring preload 9-way preload position	Swingarm, twin shock absorber, adjustable spring preload	Dual shocks, coil spring	Link type, coil spring, oil damped	Single shock, link-type w/air assist	Link-type single shock, 7-way adjustable preload
Front Brakes:	Single 230 mm disc	Single 320mm discs 2 piston calipers	Single 275 mm disc	Single disc	2 x 310 mm Discs, Brembo 4 piston calipers	2x 298mm discs 4 piston calipers	Single disc, 2 piston caliper
Rear Brakes:	130 mm Drum	Single 210mm disc 1 piston caliper	130 mm Drum	Drum	Single 220 mm disc, Nissin 2 piston caliper	Single 320mm disc 1 piston caliper	Drum
Front Tyre:	80/100 S16	100/80-17	90/90-18	2.75-18	120/70 ZR17	150/80-16	130/90-16M/C 67H, tube type
Rear Tyre:	90/90 S18	120/80-17	130/90-15	3.00-18	180/55 ZR17	150/90-15	170/80-15M/C 77H, tube type
Wheelbase:	1310 mm / 51.6 in	1375 mm / 54.1 in	1520 mm / 59.8 in	1290 mm / 50.8 in	1385 mm / 54.5 in.	1705 mm / 67.1 in	1655 mm / 65.2 in