The 2023 Kawasaki Ninja ZX-4RR is a high-revving, track-inspired sport bike powered by a 399cc liquid-cooled inline-four engine built for serious performance in a compact package. It uses a 6-speed transmission with a bi-directional quickshifter and a slipper/assist clutch, and features a trellis steel frame paired with fully adjustable Showa suspension37 mm SFF-BP fork up front and a BFRC-Lite rear shock. Braking is handled by dual 290mm front discs and a 220mm rear disc with ABS, while electronics include four riding modes, traction control, and a 4.3-inch full-color TFT display with circuit mode and smartphone connectivity. Despite its small displacement, it delivers a thrilling ride with very high RPM capability, making it a lightweight but potent option for both road and track.

2023 Kawasaki Ninja® ZX™-4RR KRT EditionAWAKEN YOUR SUPERSPORT

Kawasaki introduces a revolutionary supersport into a category filled with 400cc sport models. The Ninja® ZX™-4RR KRT Edition mounts a 399cc in-line four-cylinder engine with class-leading performance in a compact chassis with proportions similar to smaller displacement models. On the track or on the street, experience the exhilaration of the Ninja ZX-4RR KRT Edition supersport's unprecedented power, intoxicating high-rpm wail, and sharp, nimble handing that will awaken the dormant supersport within you.

Features may include:

POWERCLASS-LEADING POWER

Powered by a high-performance, in-line four-cylinder 399cc engine with advanced racing-inspired technology, the Ninja® ZX™-4RR KRT Edition supersport is a force to be reckoned with both on and off the track.

HANDLINGLEGENDARY HANDLING

The Ninja® ZX™-4RR KRT Edition supersport offers the best of both worlds with light maneuverability when riding in the city, and high-level supersport handling when sport or track riding. Key chassis dimensions were inspired by the Kawasaki Racing Team’s World Superbike Ninja® ZX™-10RR race bike.

ELECTRONICSADVANCED RIDER SUPPORT SYSTEMS

Next-level electronics offer the ability to harness the power and performance of the Ninja® ZX™-4RR KRT Edition supersport in a way that delivers confidence over a wide range of riding situations and rider preferences.

ERGONOMICSCONTROL & COMFORT

A naturally aggressive yet slightly relaxed riding position lets riders take greater advantage of the Ninja® ZX™-4RR KRT Edition supersport's nimble handling while also providing a balance of wind protection and aerodynamics.

STYLINGRACING INSPIRED

The Ninja® ZX™-4RR KRT Edition supersport features Kawasaki Racing Team inspired color and graphics with "RR" naming.

399cc Inline Four-Cylinder Dohc EngineRam Air Duct Intake SystemWorld Superbike-Inspired ChassisKawasaki Quick Shifter (KTRC)Kawasaki Traction Control (KTRC)ADDITIONAL VEHICLEHigh-performance suspensionAssist & Slipper clutchDual front disc brakesIntegrated Riding ModesPower Mode SelectionTFT color instrumentation with circuit modeSmartphone Connectivity via RIDEOLOGY THE APPAll LED lightingExclusive Kawasaki Racing Team (KRT) color & graphics