Kawasaki Zx-25r
The Kawasaki ZX-25R was introduced in 2020 for the Japanese domestic market, later expanding to Southeast Asian and other global markets. It is notable for being the world's first 250cc inline four-cylinder motorcycle in decades, reviving a class that had been dormant since the 1990s with models like the Honda CBR250RR-R. Its high-revving engine capable of exceeding 17,000 rpm generated enormous excitement among enthusiasts seeking a sports bike experience within the 250cc displacement class.
45 hp
Power
21.7 Nm
Torque
183 kg
Weight
~185 km/h (estimated; some sources report up to 190 km/h)
Top Speed
~5.5 L/100km (approximately 18 km/L, real-world estimate)
Fuel
Faired
Body
What Buyers Should Know
High-Rev Maintenance Costs
The 4-cylinder engine redlines at 17,000 RPM, requiring valve clearance checks every 15,000 km — more frequent and costly than typical inline-4 sportbikes.
Strong Resale Value
The ZX-25R holds its value exceptionally well due to limited production numbers and its unique status as the only 250cc inline-4 in modern production.
Watch the Cooling System
Owners report the bike runs hot in slow traffic due to the high-revving engine in a compact chassis — check service history for overheating incidents before buying used.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Kawasaki Zx-25r
