Kawasaki Ninja ZX-4RR (2026): the screaming 400cc inline‑four returns

The Kawasaki Ninja ZX-4RR (2026) stands alone in today’s middleweight space: a 399cc inline‑four supersport that revs to the stratosphere, wrapped in a track-focused chassis with real electronics and premium touchpoints. If you crave the scalpel feel of a supersport without jumping to a 600, the ZX‑4RR remains one of the most compelling choices you can buy.

On Torquepedia you can browse the ZX‑4RR (2026) alongside rivals, filter by power-to-weight, seat height, gear ratios, and rider aids, and drill into market-specific trims and colors.

Key highlights (2026)

• 400-class inline‑four that thrives above the midrange, delivering a classic supersport top-end rush
• Trellis frame with USD fork and a linkage rear shock; RR trim brings track-ready adjustability
• Dual front discs with radial‑mount calipers and ABS for confident stopping
• Rider aids: traction control, selectable power/ride modes, quickshifter, and slipper/assist clutch (availability can vary by market)
• TFT dash with smartphone connectivity in many regions
• Ergonomics aimed at sporty road use and track days, without full‑size 600 heat and heft

Note: Equipment, colors/graphics, and exact specifications often vary by region and model code. Always verify the details for your market on the Torquepedia model page.

What to expect from the 2026 ZX‑4RR

Kawasaki’s ZX‑4RR platform is already highly developed, so most markets will see the core hardware carried forward with potential updates to electronics, rider aids, or colorways. Factory power figures for earlier years were quoted in the high‑70s (with higher numbers when ram‑air is factored); 2026 ratings, curb weight, and gearing can differ by region. Use Torquepedia to view the precise 2026 spec set for your market and compare it side‑by‑side with prior model years.

How it rides

• Engine character: A rev-happy inline‑four that rewards keeping the tach high; smooth and tractable below midrange, but electric above it.
• Transmission: Close ratios and an up/down quickshifter help you stay in the meat of the powerband.
• Chassis feel: Light, precise, and eager to change direction; stable on the brakes with supportive suspension on the RR.
• Everyday use: Manageable size and heat compared to 600s; still an unapologetic supersport, so expect a committed stance.

ZX‑4RR (2026) vs. likely alternatives

• Aprilia RS 457: Twin-cylinder punch and low‑rpm torque; lighter feel, different character.
• Yamaha R7: Bigger twin with road-friendly torque and stability; not as revvy or razor‑edged.
• KTM RC 390: Ultra‑light single, lower cost of entry; less peak power, more scalpel than sledge.
• Kawasaki Ninja 400: Approachable twin; friendlier for new riders, less exotic than the ZX‑4RR.

Use Torquepedia’s compare tool to see power curves, gear spread, braking hardware, rake/trail, and real-world power-to-weight differences at a glance.

Who is it for?

• Track-day riders and riders graduating from 300–400 twins who want supersport precision without 600-class commitment
• Experienced canyon riders who love screaming top‑end and crisp chassis feedback
• Enthusiasts who value unique engineering: a modern 400cc inline‑four is rare and special

Frequently asked questions

• How much horsepower does the 2026 ZX‑4RR make?

  • Factory figures from earlier years were typically around the high‑70s (with higher “ram‑air” numbers). 2026 outputs can vary by region—check the Torquepedia ZX‑4RR (2026) page for the official figures in your market.

• What are the 2026 weight and seat height?

  • Historically, seat height is around the 800 mm range and wet weight is around the high‑180s kg. Confirm the 2026 numbers for your region on Torquepedia.

• What about price and top speed?

  • Pricing and top speed are market‑dependent. Torquepedia lists MSRP/OTR where available and collates verified top‑speed data when published.

Your next step

Open the Kawasaki Ninja ZX‑4RR (2026) on Torquepedia to:

• View market-specific specs, colors, and equipment
• Compare it head‑to‑head with rivals across power-to-weight, gear ratios, rider aids, brakes, and geometry
• Filter results to match your height, experience level, and intended use (commute, canyon, track)

Torquepedia continuously verifies manufacturer data and regional differences. If you spot a discrepancy, use “Suggest an edit” on the model page and we’ll review it.