Junak B20 (1960-65) vs Suzuki GSX 400F Katana (1981) vs Suzuki RMX 250S (1996) vs Suzuki SV 1000N (2003-04) vs Suzuki GSX-R 750 (2017) vs Harley-Davidson Harley Davidson Softail Low Rider ST (2022)

Comparison technical specifications

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Make:	Junak	Suzuki	Suzuki	Suzuki	Suzuki	Harley-Davidson
Model:	B20	GSX 400F Katana	RMX 250S	SV 1000N	GSX-R 750	Harley Davidson Softail Low Rider ST
Years:	1960-65	1981	1996	2003-04	2017	2022
Engine:	Four stroke, single cylinder, OHV	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Two stroke, single cylinder	Four stroke, 90° V-twin, DOHC, 4 valves per cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, V-Twin, Milwaukee-Eight 117, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Capacity:	349 cc / 21.3 cub. in.	398 cc / 24.3 cu in	249 cc / 15.2 cu in	996 cc / 60.7 cu-in	749 c / 45.7 cub. in.	1923 cc / 117 cu-in
Bore x Stroke:	75 x 79 mm	53 x 45.2 mm	67 mm x 70.8 mm	98 x 66 mm	70 x 48.7 mm	103.5 x 114.3 mm
Compression Ratio:	7.0:1	10.2:1	9.9 - 9.2 - 8.1:1	11.3:1	12.5:1	10.2:1
Ignition:	Magneto	Fully transistorised	Suzuki PEI	Digital transistorized	Digital DC-CDI	Single-fire, non-wasted, map-controlled spark ignition
Starting:	Kick-start	Electric	Kick	Electric	Electric	Electric
Clutch:	Multi-plate clutch with cork inserts working in an oil bath	Wet, multiplate	Wet, cable operated	Wet, multiple discs, hydraulic operated	Wet, multiple discs	Mechanical, 10 plate wet, assist & conventional
Max Power:	14 kW / 19 hp @ 6000 rpm	30.8 kW / 41.3 hp @ 10500 rpm	38 kW / 51 hp @ 9000 rpm	90.9 kW / 123.5 hp / @ 9000 rpm	110.3 kW / 148 hp @ 12800 rpm	103 hp / 77 kW @ 4750 rpm
Max Torque:	27.5 Nm / 2.8 kgf-m / 20.3 ft-lb @3800 rpm	30.2 Nm / 3.1 kgf-m / 22.3 lb-ft @ 8500 rpm	46.6 Nm / / 4.75 kgf-m / 34.4 lb-ft @ 7000 rpm	102 Nm / 10.4 kgf-m / 75.2 lb-ft @ 7200 rpm	86.3 Nm / 8.8 kgf-m / 64 ft-lb @ 11200 rpm	169 Nm / 125 lb-ft @ 3500 rpm
Transmission:	Four-speed constant-mesh	6 Speed	5 Speed constant mesh	6 Speed	6 Speed, constant mesh	6 Speed
Final Drive:	Chain	Chain, DAIDO DID50UB, 104 links	Chain	Chain	Chain, RK525ROZ5Y, 116 links	Belt, 32/66 ratio
Front Suspension:	Fork with coil springs telescopic shock absorbers	Telescopic fork, oil dampened	Inverted telescopic, pneumatic/coil spring, oil dampened, 21 way compression dampening, 21 way rebound dampening	46 mm Telescopic fork, cartridge-type, adjustable preload, compression and rebound damping	Showa inverted 41 mm cartridge front forks fully adjustable for high and low speed compression, spring preload, and rebound damping	Single cartridge 43 mm inverted with aluminum fork triple clamps; triple rate spring
Rear Suspension:	Independent rear wheel suspension on single wishbone , cooperating with 7- leaf spring positioned transversely;	Swingarm, dual shocks, oil dampened, spring 5-way adjustable	Link-type, spring preload fully adjustable, 18 way compression dampening, 21 way rebound dampening	Link-type, 7-way preload, compression and rebound damping adjustable	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	Hidden, free piston, coil-over monoshock; 56 mm stroke; hydraulic preload adjustment
Front Brakes:	Full hub width, of expander shoe type, hand operated	2 x Discs	Single disc	2 x 310 mm Discs, 4 piston calipers	2 x 310 mm Discs, radial-mount opposed-four-piston Brembo 4 piston monoblock calipers	2 x 300mm discs, 4 piston caliper
Rear Brakes:	Full hub width, of expander shoe type, foot operated	Single disc	Single disc	Single 220 mm disc, 2 piston caliper	Single 220 mm disc, Nissin single piston caliper	Single 292mm disc, 2 piston floating caliper
Front Tyre:	19 in	3.25-S19 4PR	80/100 - R21 51M	120/70-17	120/70 ZR17	110/90B19,62H,BW
Rear Tyre:	12 in	3.75-S18 4PR	110/100 - R18 64M	180/55-17	180/55 ZR17	180/70B16,77H,BW
Dimensions:	Length: 3055 mm / 120.3 in Width: 1420 mm / 55.9 in	Length: 2105 mm / 82.9 in Width: 750 mm / 29.5 in Height: 1135 mm / 44.7 in	Length: 2185 mm / 86.0 in Width: 895 mm / 35.2 in Height 1255 mm - 49.4 in	Length 2085 mm / 82.0 in Width 745 mm / 29.3 in Height 1170 mm / 46.0 in	Length 2030 mm / 79.9 in. Width 710 mm / 28.0 in. Height 1125 mm / 44.6 in.	Length 2365 mm / 93.1 in Width 870 mm / 34.3 in Height 1300 mm / 51.2 in
Seat Height:	755 mm / 29.7 in	780 mm / 30.7 in	955 mm / 37.6 in	810 mm / 31.8 in	810 mm / 31.8 in.	Laden 686 mm / 27 in Unladen 720 mm / 28.3 in
Ground Clearance:	170 mm / 6.7 in	165 mm / 6.5 in	360 mm / 14.2 in	150 mm / 5.9 in	130 mm / 5.1 in	150 mm / 5.9 in
Fuel Capacity:	17 l / 3.9 US gal	15 Litres / 4.0 US gal / 3.3 Imp gal	11 L / 2.9 US gal / 2.4 Imp gal	17 Litres / 4.5 US gal / 3.7 Imp gal	17 Litres / 4.5 US gal / 3.7 Imp gal	18.9 Litres / 5 US gal