| Category | Specification | 
|---|---|
| Engine Type | 249 cc liquid‑cooled, 4‑stroke, DOHC single-cylinder | 
| Displacement | 249 cc | 
| Bore × Stroke | 78.0 × 52.2 mm | 
| Compression Ratio | 14.0 : 1 | 
| Fuel System | DFI® fuel injection, 44 mm Keihin throttle body with dual injectors | 
| Starting System | Electric start (Li‑ion battery) | 
| Ignition | Digital DC‑CDI | 
| Transmission | 5‑speed, return shift; wet multi‑disc hydraulic clutch | 
| Frame Type | Aluminium perimeter (from KX450) | 
| Front Suspension | 49 mm Showa inverted fork, compression/rebound adjustable, 305 mm travel | 
| Rear Suspension | Uni‑Trak shock; dual‑range compression, rebound, preload adjustable, 307 mm travel | 
| Front Brake | 270 mm semi‑floating petal disc, dual-piston caliper | 
| Rear Brake | 240 mm petal disc, single-piston caliper | 
| Front Tyre | 80/100‑21 Dunlop MX34 | 
| Rear Tyre | 110/90‑19 Dunlop MX34 | 
| Wheelbase | 1,485 mm | 
| Ground Clearance | 340 mm | 
| Seat Height | 955 mm | 
| Fuel Tank Capacity | 6.2 L | 
| Curb Mass | 109.2 kg (240.7 lb full fuel), 104.7 kg dry | 
| Rake / Trail | 27.0° / 118 mm | 
| Features | Power Modes, KTRC, Launch Control, Smartphone via Rideology App, ERGO‑FIT, adjustable ergonomics | 
The 2025 Kawasaki KX250 is a new-generation motocross racer powered by a refined 249 cc DOHC single-cylinder engine with EFI, electric start, and a 5-speed gearbox. Mounted in a lightweight perimeter frame derived from the KX450, it features Showa suspension with 305/307 mm travel, offering razor-sharp handling and enhanced traction. Braking utilizes petal discs, while modern aids include power modes, Kawasaki traction control (KTRC), launch control, and smartphone connectivity via the Rideology App. At just ~109 kg full-fuel, the KX250 is light, agile, and packed with rider-focused tech. ERGO‑FIT adjustments allow a personalized fit for racers.