Fastest 400cc motorcycles are no longer just beginner bikes—they’re lightweight machines that deliver serious speed, thrilling performance, and cutting-edge technology. From Kawasaki’s Ninja 400 to China’s Kove 450RR, these small-capacity sportbikes prove that you don’t need a liter-class engine to feel the rush.
From Japan to Europe to China, producers are pushing small-capability engines to surprising heights—both in speed and technology. Permit’s smash down some of the top contenders in the 400cc category for 2025.
Kove 450RR – 137 mph
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China’s formidable entry into the 400cc sportbike scene, the Kove 450RR, offers extreme overall performance. Its 443cc inline-4 produces 70hp (73hp with ram air) and 29 lb-ft of torque, topping out at a claimed 137 mph. With a light-weight 364-pound body and a steel trellis chassis, it hastens like a rocket whilst staying agile on corners.
The 450RR additionally brings top-class functions: KYB suspension, radial four-piston brakes, TFT dashboard, release manipulate, and even aerodynamic wings inspired by Ducati. Riders looking for an excessive-pace, music-equipped experience without breaking the bank must keep this motorcycle on their radar.
Kawasaki Ninja ZX-4RR – 130 mph
Kawasaki’s Ninja ZX-4RR is a current twist on a classic method. It’s a 399cc inline-4 that churns out 77hp (80hp with ram air) and revs to 16,000 rpm. Checking out suggests a pinnacle speed round a 130 mph, making it one of the quickest 400cc bikes available today.
The bike also boasts Showa SFF-BP forks, a BFRC-lite surprise, traction control, ride modes, and a quickshifter as standard. Light, balanced, and aggressive, the ZX-4RR is constructed for both the road and the tune.
Kawasaki Ninja 400 – 119 mph
A favorite amongst entry-level riders, the Ninja four hundred balances speed, handling, and accessibility. Its 399cc parallel-dual engine produces 44hp and 28 lb-ft of torque, reaching almost 119 mph. With a 30.9-inch seat top and 370-pound cut down weight, it’s approachable for novices while still fun for knowledgeable riders. Fuel-green and reliable, the Ninja 400 remains a stable preference for ordinary commuting and lively rides.
KTM RC390 – 111 mph
The KTM RC390 proves that a 373cc single-cylinder motorcycle can thrill. Delivering 40hp and 24 lb-ft of torque, it hits triple-digit speeds (111 mph) quite simply. With a lightweight 362-pound frame, WP Apex adjustable suspension, and a slipper snatch, it’s unique, agile, and fun on both the road and the track. ABS has become popular, with a Supermoto mode for riders who like extra control.
Yamaha YZF-R3 – 110 mph
Finally, the Yamaha YZF-R3 rounds out the fastest 400cc bikes listing. Its 321cc parallel-twin makes 36hp and 20 lb-feet of torque. At the same time as it could not pinnacle the charts in natural velocity (110 mph), the R3 excels in coping with, agility, and rideability. With a low 30. 8-inch seat peak and lightweight chassis, it’s amateur-pleasant, however additionally rewards skilled riders on twisty roads or tune days.
Final thoughts
The 400cc phase has come a long way. Bikes like the Kove 450RR, ZX-4RR, and Ninja 400 show that small-capacity motorcycles can supply extreme thrills, pinnacle-end velocity, and advanced tech features. Whether or not you’re seeking out your first sportbike, a tuned-equipped device, or a lightweight day by day rider, the fastest 400cc motorcycles in 2025 have something for absolutely everyone.
Lightweight, agile, and exceedingly rapid, these bikes display that you don’t want a liter-elegance engine to experience the frenzy.
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