Honda XL 125R (1984-85) vs Yamaha YZF 600R Thundercat (1998) vs Kawasaki ZZR 1400 / Ninja ZX-14R (2015-16) vs Yamaha XJ6 Diversion (2013) vs Kawasaki KH 250 (1976-77) vs Harley-Davidson Harley Davidson Softail Deluxe (2018-19)

Comparison technical specifications

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Make:	Honda	Yamaha	Kawasaki	Yamaha	Kawasaki	Harley-Davidson
Model:	XL 125R	YZF 600R Thundercat	ZZR 1400 / Ninja ZX-14R	XJ6 Diversion	KH 250	Harley Davidson Softail Deluxe
Years:	1984-85	1998	2015-16	2013	1976-77	2018-19
Engine:	Four stroke, single cylinder, OHC, 2 valves	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder	Four stroke, transverse four cylinders, DOHC, 4 valves per cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Two stroke, transverse three cylinder,	Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Capacity:	124 cc / 7.6 cu-in	599 cc / 36.5 cu-in	1441 cc / 87.9 cu-in	600 cc / 36.6 cu-in	249 cc / 15.2 cu-in	1746 cc / 107 cub in
Bore x Stroke:	56.5 x 49.5 mm	62 x 49.6 mm	84 x 65 mm	65.5 x 44.5 mm	45 х 52.3 mm	100 x 111 mm
Cooling System:	Air cooled	Liquid cooled	Liquid cooled	Liquid cooled	Air cooled	Air cooled
Compression Ratio:	9.2:1	12.0:1	12.3:1	12.2:1	7.5:1	10.0:1
Induction:	PD52 carburetor	4 x 36 mm Keihin CV downdraft carburetors	DFI® with four 44mm Mikuni throttle bodies	Group injection type fuel injection	3x Mikuni VM22SC, Ø 22 mm carburetor	Electronic Sequential Port Fuel Injection (ESPFI)
Ignition:	CDI	Digital TCI	TCBI with Digital Advance	TCI	CDI	Single-fire, non-wasted, map-controlled spark ignition
Starting:	Kick	Electric	Electric	Electric	Kick	Electric
Max Torque:	10 Nm / 7.3 lb-ft @ 8000 rpm	65.7 Nm / 6.7 kgf-m / 48.7 lb-ft @ 9500 rpm	153.5 Nm / 113.2 lb-ft @ @ 7500 rpm	59.7 Nm / 6.1 kgf-m @ 8500 rpm	2.7 kgf-m / @ 7000 rpm	148 Nm / 109 ft-lb @ 3000 rpm
Transmission:	6 Speed	6 Speed	6 Speed	6 Speed	5 Speed	6 Speed
Final Drive:	Chain	530 O-ring chain OEM sprocket sizes per tooth Front= 15 Back= 47	X-Ring chain	Chain	Chain	Belt
Front Suspension:	Telescopic forks	41 mm telescopic fork adjustable preload, compression and rebound damping	43mm inverted cartridge fork with adjustable preload, 18-way compression and 15-way rebound damping adjustment,	43mm Telescopic fork, 130mm wheel travel	Telescopic hydraulic forks	Showa Inverted forks
Rear Suspension:	Swinging arm	Monoshock adjustable preload, bump and rebound	Bottom-link Uni-Trak® and gas-charged shock with adjustable preload, stepless rebound and compression damping adjustments, adjustable ride height	Swingarm Link less type Monocross, 130mm wheel travel	Dual shocks, swingarm	Mono Shock adjustable
Front Brakes:	Drum	2x 300 mm Discs, 4 piston calipers	2x 310mm discs 4 piston calipers	2x 298 mm discs	Single disc	2 x Disc, 4 piston caliper
Rear Brakes:	Drum	Single 245mm disc, 2 piston caliper	Single 250mm disc 2 piston caliper	Single 245 mm disc	180mm Drum	Single Disc, 2 piston floating caliper
Front Tyre:	2.75-21	120/60-17	120/70 ZR17	120/70 ZR17	3.25-18	MT90B16 72H
Rear Tyre:	4.10-18	160/60-17	190/50 ZR17	160/60 ZR17	3.50-18	MU85B16 77H
Wheelbase:	1375 mm / 54.1 in	1415 mm / 55.7 in	1481 mm / 58.3 in.	1440 mm / 56.7 in	1374 mm / 54.1 in	1630 mm / 64.2 in
Fuel Capacity:	9 Litres / 2.3 us gal	19 Litres / 5.0 US gal / 4.2 Imp gal	21.9 Litres / 5.8 US gal	17.3 Litres / 4.5 US gal	14 Litres / 3.7 US gal	18.9 Litres / 5 US gal