Kawasaki Ninja ZX-6R 2024 vs. Harley-Davidson Sportster S RH1250S 2021

Kawasaki Ninja ZX-6R 2024

Harley-Davidson Sportster S RH1250S 2021

Overview - Kawasaki Ninja ZX-6R 2024 vs Harley-Davidson Sportster S RH1250S 2021

Kawasaki Ninja ZX-6R 2024

Harley-Davidson Sportster S RH1250S 2021

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Technical Specifications Kawasaki Ninja ZX-6R 2024 compared to Harley-Davidson Sportster S RH1250S 2021

Kawasaki Ninja ZX-6R 2024

Harley-Davidson Sportster S RH1250S 2021

Kawasaki Ninja ZX-6R 2024

Harley-Davidson Sportster S RH1250S 2021

Engine and Drive Train

Engine type	Engine type	In line	Engine type	V
Bore	Bore	67 mm	Bore	105 mm
Stroke	Stroke	45.1 mm	Stroke	72.3 mm
Engine power	Engine power	124 HP	Engine power	122 HP
Rpm at Max. Power	Rpm at Max. Power	13,000 rpm	Rpm at Max. Power	7,500 rpm
Torque	Torque	69 Nm	Torque	125 Nm
Rpm at Torque	Rpm at Torque	10,800 rpm	Rpm at Torque	6,000 rpm
Compression Ratio	Compression Ratio	12.9	Compression Ratio	12
Fuel system	Fuel system	Injection	Fuel system	Injection
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Transmission	Transmission	Chain	Transmission	Belt
Transmission Type	Transmission Type	Gearshift	Transmission Type	Gearshift
Number of gears	Number of gears	6	Number of gears	6
Cylinders	Cylinders	4	Cylinders	2
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Valves per cylinder	Valves per cylinder	4	Valves per cylinder	4
Valves	Valves	DOHC	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	636 ccm	Displacement	1,252 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Diameter	Diameter	41 mm	Diameter	43 mm
Travel	Travel	120 mm	Travel	92 mm
Adjustment	Adjustment	Compression, Preload, Rebound	Adjustment	Compression, Preload, Rebound

Suspension Rear

Suspension	Suspension	Swing arm	Suspension	Swing arm
Shock absorber	Shock absorber	Monoshock	Shock absorber	Monoshock
Travel	Travel	151 mm	Travel	51 mm
Adjustment	Adjustment	Compression, Preload, Rebound	Adjustment	Compression, Preload, Rebound

Chassis

Frame	Frame	Aluminium	Frame	Steel
Frame type	Frame type	Twin Tube, Perimeter, Extruded	Frame type	Tubular, Load-bearing engine
Rake	Rake	66.5 degree	Rake	60 degree
Trail	Trail	101 mm	Trail	148 mm

Brakes Front

Type	Type	Double disk	Type	Single disk
Diameter	Diameter	310 mm	Diameter	320 mm
Piston	Piston	Four pistons	Piston	Four pistons
Shock mount	Shock mount	Semi-Schwimmsattel	Shock mount	Floating caliper
Technology	Technology	radial	Technology	radial, Monoblock

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	220 mm	Diameter	260 mm
Piston	Piston	Single piston	Piston	Single piston
Shock mount	Shock mount	Floating caliper	Shock mount	Fixed caliper

Assistance Systems

Advanced Rider Assistance Systems	Advanced Rider Assistance Systems	ABS, Riding modes, Quickshifter, Traction control	Advanced Rider Assistance Systems	ABS, Riding modes, Cornering ABS, Ride by Wire, Cruise control, Traction control

Dimensions and Weights

Front tyre width	Front tyre width	120 mm	Front tyre width	160 mm
Front tyre height	Front tyre height	70 %	Front tyre height	70 %
Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	17 inch
Rear tyre width	Rear tyre width	180 mm	Rear tyre width	180 mm
Rear tyre height	Rear tyre height	55 %	Rear tyre height	70 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	16 inch
Length	Length	2,025 mm	Length	2,265 mm
Width	Width	710 mm	Width	843 mm
Height	Height	1,105 mm	Height	1,089 mm
Wheelbase	Wheelbase	1,400 mm	Wheelbase	1,520 mm
Seat Height	Seat Height	830 mm	Seat Height	755 mm
Kerb Weight (with ABS)	Kerb Weight (with ABS)	198 kg	Kerb Weight (with ABS)	228 kg
Fuel Tank Capacity	Fuel Tank Capacity	17 l	Fuel Tank Capacity	11.8 l
License compliancy	License compliancy	A	License compliancy	A

Equipment

Equipment	Equipment	Connectivity, LED-Headlights, TFT display	Equipment	Bluetooth, Connectivity, LED-Headlights, TFT display

Pros and Cons in comparison

Kawasaki Ninja ZX-6R 2024

The Kawasaki Ninja ZX-6R impresses with a powerful 636 cubic centimetres engine and dynamic handling, making it a thoroughly potent and sportily tuned machine. The well-functioning quickshifter and clear display contribute to a positive riding experience. However, the aggressive riding position significantly compromises comfort and the lack of a modern ride-by-wire system prevents the use of a blipper - making the ZX-6R look outdated compared to competitor models. Overall, it is an excellent choice for riders with sporting ambitions, but offers room for improvement in terms of comfort and modern features.

Powerful 636cc engine with plenty of grunt and power

well-functioning quickshifter at high rpm

good handling and pleasant ride feel

clear and easy-to-read display

sporty suspension

reliable brakes

Missing Ride-by-Wire system - therefore no blipper

aggressive riding position with acute knee angle and handlebar ends turned inwards

lack of comfort for longer rides

somewhat spartan display compared to the competition

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Harley-Davidson Sportster S RH1250S 2021

The Sportster S returns to the tradition of this model series - yes, it really used to be about sport! That's why the latest American creation, with its 122 hp and 125 Nm of torque, doesn't want to be a cruiser, but instead is almost classless in its pursuit of customers. What is on offer is a wonderful poser bike that is surprisingly easy to ride. The single-disc brake at the front works well and the fat 160 front tyre steers better than you would expect. Only the hard suspension makes the rider suffer on longer distances - which of course doesn't matter at all in front of the ice cream parlour. Electronics and safety are top-notch, which mitigates the tidy price for true fans.

Powerful, refined engine

brakes very good for a single-disc system

full electronics package with cornering ABS and lean angle-dependent traction control

Chassis really hard

turn-in behaviour somewhat unwilling due to wide front tyre