Overview

The 2025 Ninja ZX-4RR KRT Edition ABS brings Kawasaki Racing Team styling to a class‑defining, high‑revving inline-four supersport. Built for riders who want track capability with street legality, it pairs a compact 399cc four‑cylinder engine with advanced electronics, adjustable suspension, and ABS for confident, repeatable performance.

Engine and Performance

At the core is a 399cc liquid‑cooled, DOHC inline-four engineered to spin well past 15,000 rpm, delivering strong top‑end power with responsive midrange. A centrally mounted Ram Air intake feeds the engine for sharper throttle response at speed. The 6‑speed gearbox integrates an assist and slipper clutch for light lever effort and reduced rear‑wheel hop during aggressive downshifts, and the Kawasaki Quick Shifter allows clutchless up and down shifts for consistent lap‑to‑lap control.

Chassis, Suspension, and Brakes

A lightweight trellis frame provides rigidity and feedback while keeping mass centralized. The ZX‑4RR specification includes a Showa SFF‑BP inverted fork with full adjustability and a Showa BFRC‑lite rear shock, giving riders precise tuning for road and track. Braking is handled by dual front discs with radial‑mount, opposed‑piston calipers and a single rear disc, managed by anti‑lock braking (ABS) for stable braking across varying conditions. Sport‑focused 17‑inch wheels and performance tires support quick turn‑in and stable exits.

Electronics and Rider Aids

Integrated riding modes coordinate power delivery and Kawasaki Traction Control to match conditions, typically including Sport, Road, Rain, and a customizable Rider mode. Power modes let you tailor output for the environment, while ABS provides added confidence under hard braking. A 4.3‑inch full‑color TFT display offers clear information and smartphone connectivity via Kawasaki’s Rideology app for logging rides and checking vehicle data.

Design and Ergonomics

The KRT Edition features Kawasaki Racing Team graphics in signature Lime Green and Ebony with race‑inspired detailing. Clip‑on handlebars, rearset footpegs, and a sculpted tank create a locked‑in riding position for cornering support without compromising daily usability. Compact bodywork and a centralized exhaust layout contribute to mass centralization and aerodynamic efficiency.

Everyday Usability

Despite its track focus, the 2025 ZX‑4RR KRT Edition ABS remains practical for the street. The fueling is smooth at low rpm, the clutch action is light, and the electronics help manage variable weather and traffic. The TFT’s Bluetooth connectivity adds convenience for navigation prompts and ride data, and the ABS enhances safety on imperfect surfaces.