| Category | Specification |
|---|---|
| Engine Type | 399 cc, liquid‑cooled, 16‑valve DOHC inline‑four |
| Displacement | 399 cc |
| Max Power | 57 kW (77 PS) @ 14,500 rpm (≈80 PS with ram air) |
| Max Torque | 37.6 Nm @ 12,500 rpm |
| Redline | 15,000 rpm+ |
| Starting System | Electric self‑start |
| Fuel System | Multipoint electronic fuel injection + ram‑air intake |
| Transmission | 6‑speed manual, chain drive |
| Frame | Steel trellis/diamond‑type high‑tensile |
| Front Suspension | 37 mm inverted Showa SFF‑BP fork (preload adjustable on SE/RR) |
| Rear Suspension | Horizontal back‑link monoshock (BFRC‑lite on RR) |
| Front Brake | Dual 290 mm petal disc with radial‑mount calipers + ABS |
| Rear Brake | 220 mm disc + ABS |
| Front Tyre | 120/70‑17 tubeless |
| Rear Tyre | 160/60‑17 tubeless |
| Wheelbase | 1,380 mm |
| Seat Height | 800 mm |
| Fuel Tank Capacity | 15 L |
| Dry/Wet Weight | 188–189 kg (depending on model) |
| Chassis & Features | 4.3″ TFT display, LED lighting, smartphone connectivity, 4 ride modes, traction control; SE/RR get quick‑shifter, adjustable suspension |
The Kawasaki Ninja ZX‑4R (2025) is a groundbreaking 400 cc supersport, featuring a high-revving, 77 PS inline‑four engine that howls past 15,000 rpm. Designed with a sharp trellis chassis and Showa suspension, it delivers superb handling and agility. Fuel is managed via multipoint EFI enriched by ram-air, and starting is electric. Braking comes from dual 290 mm front discs with ABS. It also offers a 4.3″ TFT console, LED lighting, smartphone connectivity, and four riding modes. Rider-focused SE and RR trims add adjustable suspension and a quick-shifter—making the ZX‑4R a compact yet exhilarating performance bike.