Kawasaki Z650
65 hp, 649 cc, 187 kg2016 - 2019
Kawasaki Z400
45 hp, 399 cc, 167 kg2019 - 2020
MetricUS
EngineKawasaki Z650Kawasaki Z400
Displacement649 cc399 cc
Max power65 hp (@6 500 RPM)45 hp (@10 000 RPM)
Max torque68 Nm (@8 000 RPM)38 Nm (@8 000 RPM)
Redline9 500 RPM12 000 RPM
Idling speed1 200 RPM1 300 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-2DOHC Inline-2
Compression10.80:111.50:1
Oil capacity2.10 litre2.00 litre
Oil type10W40SAE 10W40
Spark plug typeNGK CR9EIA-9NGK LMAR9G
CoolingLiquidLiquid
Valves88
Bore83.0 mm70.0 mm
Stroke60.0 mm51.8 mm
Throttle bore36.0 mm32.0 mm
Weight to power2.88 kg/hp3.71 kg/hp
Power to weight347 hp/Ton269 hp/Ton
Battery type12V 8.6Ah12V 8Ah
GearboxKawasaki Z650Kawasaki Z400
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain typeRK 520520
Gears count66
Primary ratio2.0952.219
Final drive3.0672.929
1. gear2.438 (71 km/h)2.929 (73 km/h)
2. gear1.714 (101 km/h)2.056 (104 km/h)
3. gear1.333 (130 km/h)1.619 (132 km/h)
4. gear1.111 (156 km/h)1.333 (160 km/h)
5. gear0.966 (180 km/h)1.154 (185 km/h)
6. gear0.852 (204 km/h)1.037 (205 km/h)
ChasisKawasaki Z650Kawasaki Z400
Frame typeTrellis, high tensile steelTrellis frame
Front susp.41mm Telescopic fork, 124.00 mm travel41mm fork, 120.00 mm travel
Rear susp.MonoshockMonoshock, 130.00 mm travel
Summary

The 2019-2020 Kawasaki Z400 and 2016-2019 Kawasaki Z650 are two popular sport motorcycles that have been manufactured by the Japanese company. While they have many similarities, there are also notable differences between them.

Basic characteristics: The Kawasaki Z400 is a lightweight and agile bike with a liquid-cooled, DOHC 399cc engine that produces 49 horsepower and 28 lb-ft of torque. It has a six-speed transmission and a slipper clutch for smoother shifting. The Z400 is equipped with a responsive assist and slipper clutch technology, Anti-lock Braking System (ABS), and Electronic Fuel Injection (EFI). The bike weighs around 363 pounds and can reach a top speed of 115 mph.

The Kawasaki Z650, on the other hand, is a heavier (around 410 pounds) and more powerful motorcycle with a 649cc parallel-twin engine that produces 68 horsepower and 47 lb-ft of torque. It has a six-speed transmission and a slipper clutch for smoother shifting. The Z650 comes with a similar assist/slipper clutch technology, ABS, and EFI. It also has a top speed of 125 mph.

Targeted audiences: The Kawasaki Z400 is targeted towards beginner and intermediate riders looking for a budget-friendly entry-level bike. The Z400 is a great bike for commuters, city riders, and those who need a bike for weekend cruises, and occasional track days. The Kawasaki Z650 is built for those with some riding experience, looking for a more powerful bike that is equally comfortable for long rides and for twisty roads. It is a great option for touring, racing as well as commuting.

Best points compared to each other: The Kawasaki Z400 is best known for its lightness and lively handling, making it perfect for beginners, city riders, and track enthusiasts. It is also budget-friendly, with a price tag that puts it within reach for most riders, making it one of the best value-for-money bikes in the market.

The Kawasaki Z650 is known for its well-balanced handling and comfortable riding position. It is more powerful, smoother and quicker in acceleration, making it a great option for intermediate and advanced riders.

Areas where they shine: Both the Kawasaki Z400 and Z650 are popular bikes with a range of great features. The Z400 is perfect for commuting, with its lightweight nature, fuel-efficient engine and high maneuverability. On the other hand, Z650 shines in its comfort

Dyno chart of 2017 Kawasaki Z650