77 hp / 56.6 kW
Power
42 Nm
Torque
188 kg
Weight
399 ccm
Displacement
The Kawasaki Ninja ZX-4R is a 399cc supersport with an inline-four, 77 hp at 14,500 rpm and a 16,000 rpm redline – unique in its class.
Model Details
| Lifecycle | current |
Model Info
| Vehicle Type | street |
| Target Audience | Sport riders, A2 upgraders, technology enthusiasts |
Engine & Performance
| Engine Type | Inline four, liquid-cooled, DOHC, 16 valves |
| Cylinders | 4 |
| Displacement | 399 ccm |
| Power | 77 hp |
| Power (kW) | 56.6 kW |
| Power at RPM | 14,500 rpm |
| Torque | 42 Nm |
| Torque at RPM | 11,000 rpm |
| Fuel System | Fuel injection |
| Cooling | Liquid cooling |
| Emission Standard | Euro 5 |
Drivetrain
| Transmission | 6-speed |
| Final Drive | Chain |
| Clutch | Multi-plate wet clutch, slipper |
Performance
| Power-to-Weight | 0.4 hp/kg |
Chassis & Suspension
| Frame Type | Steel tubular trellis frame |
| Front Fork | USD telescopic fork |
| Fork Brand | SFF-BP |
| Fork Diameter | 37 mm |
| Front Travel | 120 mm |
| Front Suspension Adj. | Preload, rebound |
| Rear Shock | Central monoshock |
| Rear Travel | 132 mm |
| Rear Suspension Adj. | Preload |
Brakes
| Front Disc Count | 2 |
| Front Disc Size | 290 mm |
| Front Caliper | 4-piston |
| Rear Disc Size | 220 mm |
| Rear Caliper | 1-piston |
| ABS | Yes |
Dimensions & Weight
| Seat Height | 800 mm |
| Wheelbase | 1,380 mm |
| Wet Weight | 188 kg |
| Fuel Capacity | 15 L |
Tires & Wheels
| Front Tire | 120/70 ZR17 |
| Rear Tire | 160/60 ZR17 |
Electronics & Rider Aids
| Riding Modes | Yes |
| Mode Count | 2 |
| Mode Names | Full, Low |
| Traction Control | Yes |
| Quickshifter | Option |
| QS Direction | Up & Down |
Display & Connectivity
| Display | TFT |
| Display Size | 4.3 " |
| Connectivity | Bluetooth |
Lighting
| Headlight | LED |
| DRL | Yes |
Price & Availability
| Market Launch | 2,023 |
| A2 Compatible | Yes |
Strengths & Weaknesses
Strengths
- Only modern 400cc inline-four, 16,000 rpm rev limit, high-quality SFF-BP fork, TFT display with Bluetooth, A2-compatible
Weaknesses
- Limited low-end torque, quickshifter only optional, sporty compact riding position, no IMU