Engineering:Kawasaki Ninja ZX-25R

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Kawasaki Ninja ZX-25R
2022 Kawasaki Ninja ZX-25R ABS SE 250 (20221105).jpg
ManufacturerKawasaki Motorcycle & Engine Company
Parent companyKawasaki Heavy Industries
Production2020–
ClassSportbike
Engine249 cc (15.2 cu in) liquid-cooled 4-stroke 16-valve DOHC Inline Four
Bore / stroke50 mm × 31.8 mm (2.0 in × 1.3 in)
Compression ratio11,5:1
Power43.5 hp (32.4 kW) @ 15500 rpm
Torque21.2 N⋅m (15.6 lbf⋅ft) @ 13000 rpm
TransmissionSix-speed, chain drive
Frame typeSteel diamond with truss structure
SuspensionFront: telescopic fork
BrakesFront: Four-piston caliper with single 310 mm (12.2 in) disc
Rear: Single-piston caliper with single 220 mm (8.7 in) disc
TiresFront: 110/70–17 (tubeless)
Rear: 150/60–17 (tubeless)
Weight180–184 kg (397–406 lb) (wet)

The Kawasaki Ninja ZX-25R is a 249 cc Ninja series sport bike introduced by the Japanese motorcycle manufacturer Kawasaki since 2020.[1]

Description

Engine

The bike is characterized by having a 249 cc in-line four-cylinder engine, therefore an engine with a very small volume but with a multi-cylinder fractionation. The engine is mounted in front of the gear and is powered by a multipoint indirect electronic injection system with DOHC distribution and 16 valves, four for each cylinder; delivers about 50 HP and can reach 17,000 rpm. Power can be increased to 51 HP at 15,500 rpm with the aid of an air box, with maximum torque reaching 22.9 Nm (2.3 kgm) at 14,500 rpm.[2]

It is produced in Indonesia and Thailand as a successor to the Ninja ZX-2R/ZXR250, which was produced between 1988 and 2004 (Malaysian market).This motorcycle was first shown at the Tokyo Motor Show in 2019, to then be launched on the Asian market on July 10, 2020.

For the 2023, it has received many updates.[3]

See also

References

External links