WARRANTY TILL 02-21-27 WHY BUY NEW? SAVE BIG ON THIS ONE. The 2026 Kawasaki Ninja ZX-4RR (ZX400) is a high-performance, small-displacement supersport bike. It is renowned for its 399cc liquid-cooled, inline-four engine that revs past 15,000 RPM. It features top-tier adjustable suspension, dual front disc brakes, and a full-color TFT display.Engine & PerformanceEngine Type: 4-stroke, liquid-cooled, DOHC, 16-valve, in-line fourDisplacement: 399 ccHorsepower: ~76 - 77 PS (56-57 kW) at 14,000 RPM (unrestricted); North American models feature emissions-compliance limits out of the box.Torque: 39.6 Nm (29.2 lb-ft) at 13,200 RPMTransmission: 6-speed return shift with chain final driveChassis & SuspensionFrame: High-tensile steel Trellis frame, designed with WSBK-inspired geometryFront Suspension: 37 mm inverted Showa SFF-BP (Separate Function Fork - Big Piston) with adjustable spring preloadRear Suspension: Horizontal back-link, Showa BFRC lite gas-charged shock with piggyback reservoir; fully adjustable for compression, rebound, and spring preloadBrakes & WheelsFront Brakes: Dual 290 mm semi-floating discs with radial-mount, 4-piston monobloc calipersRear Brakes: Single 220 mm disc with single-piston caliperFront Tire: 110/70-17Rear Tire: 160/60-17Electronics & Rider AidsKawasaki TRaction Control (KTRC): 3-mode systemKawasaki Quick Shifter (KQS): Dual-direction (clutchless up-and-down shifts)Power Modes: Multiple modes to tailor engine deliveryInstrumentation: 4.3-inch full-color TFT display with smartphone connectivity via the RIDEOLOGY THE APPDimensions & WeightCurb Weight: ~414 lbs (~188 kg)Seat Height: 800 mm (31.5 inches)Fuel Capacity: 15 liters (4.0