Kawasaki Z400
45 hp, 399 cc, 167 kg2019 - 2020
Kawasaki Z650
65 hp, 649 cc, 187 kg2016 - 2019
MetricUS
EngineKawasaki Z400Kawasaki Z650
Displacement399 cc649 cc
Max power45 hp (@10 000 RPM)65 hp (@6 500 RPM)
Max torque38 Nm (@8 000 RPM)68 Nm (@8 000 RPM)
Redline12 000 RPM9 500 RPM
Idling speed1 300 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-2DOHC Inline-2
Compression11.50:110.80:1
Oil capacity2.00 litre2.10 litre
Oil typeSAE 10W4010W40
Spark plug typeNGK LMAR9GNGK CR9EIA-9
CoolingLiquidLiquid
Valves88
Bore70.0 mm83.0 mm
Stroke51.8 mm60.0 mm
Throttle bore32.0 mm36.0 mm
Weight to power3.71 kg/hp2.88 kg/hp
Power to weight269 hp/Ton347 hp/Ton
Battery type12V 8Ah12V 8.6Ah
GearboxKawasaki Z400Kawasaki Z650
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type520RK 520
Gears count66
Primary ratio2.2192.095
Final drive2.9293.067
1. gear2.929 (73 km/h)2.438 (71 km/h)
2. gear2.056 (104 km/h)1.714 (101 km/h)
3. gear1.619 (132 km/h)1.333 (130 km/h)
4. gear1.333 (160 km/h)1.111 (156 km/h)
5. gear1.154 (185 km/h)0.966 (180 km/h)
6. gear1.037 (205 km/h)0.852 (204 km/h)
ChasisKawasaki Z400Kawasaki Z650
Frame typeTrellis frameTrellis, high tensile steel
Front susp.41mm fork, 120.00 mm travel41mm Telescopic fork, 124.00 mm travel
Rear susp.Monoshock, 130.00 mm travelMonoshock
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