Kawasaki KX 250 (2025) — Specs
Identity
Manufacturer: Kawasaki
Model: KX 250
Category: MX-Offroad
Type: MX-Offroad
Years: 2025 → 2025
Engine
Displacement (cc): 249
Cylinders: 1
Torque (Nm): 29
Dimensions
Overall length: 2175 mm
Overall width: 830 mm
Overall height: 1265 mm
Wheelbase: 1480 mm
Ground clearance: 335 mm
Weight (kg): 109
Seat height (mm): 955
Tank (L): 6.2
Tires
Front tire: 80/100-21
Rear tire: 100/90-19
Front pressure (bar): 0.8
Rear pressure (bar): 0.8
Drivetrain
Drive chain: 520 chain
Sprockets (front / rear): 13 / 50
Ignition
Spark plug: NGK SILMAR9F9
Fluids & Filters
Engine oil: SAE10W-40, API SG
Engine oil (with filter, L): 0.95
Engine oil (without filter, L): 0.69
Oil filter: Hiflofiltro HF207
Air filter: Hiflofiltro HFA2402
Coolant (L): 1
Brake fluid: DOT 4
Service
Battery: YTX5L-BS
Service interval (km): 6000
Service interval (months): 12
Valve check (km): 12000
Parts and consumables for this motorcycle
Data is gathered with care, but without guarantee. Always confirm critical information with your dealer or workshop.
Service notes
Service interval: every 6,000 km or 12 months, whichever comes first. Valve clearance check every 12,000 km. Engine oil: oil grade SAE10W-40, API SG, 0.95 L with filter change, 0.69 L without filter change. Spark plug: NGK SILMAR9F9. Brake fluid: DOT 4. Coolant capacity: 1 L. Chain: 520 chain, sprockets 13/50 teeth. Tire pressure: front 0.8 bar, rear 0.8 bar (cold). Tire size: front 80/100-21, rear 100/90-19. Always confirm critical values with the workshop manual or an authorised dealer.
OEM and quality aftermarket parts that fit this bike. Always confirm with your dealer before ordering.
Engine oil
Spec: SAE 10W-40, 1.5 L (with filter)
- OEM OEM recommended engine oil (SAE 10W-40)
- Premium Motul 7100 4T (100% Synthetic, Ester)
- Premium Motul 5100 4T Technosynthese (Semi-Synthetic)
Which Motul for this bike?
| Motul 7100 4T ✓ | Motul 5100 4T | |
|---|---|---|
| Product | Motul 7100 4T — 100% fully synthetic | Motul 5100 4T — semi-synthetic |
| Best for | Sport, Naked, Adventure (600cc+), track | Standard, Cruiser, Scooter, daily use |
| RPM protection | Excellent — ester base, stable under load | Good — for normal riding conditions |
- Standard Repsol Moto Racing 4T (Synthetic)
- Standard Elf Moto 4 Tech (Semi-Synthetic)
Fully Synthetic vs Semi-Synthetic
| Fully Synthetic | Semi-Synthetic | |
|---|---|---|
| Base oil | 100% chemical synthesis (ester or PAO) | Mineral oil + synthetic additives |
| Heat resistance | Excellent — stable at extreme heat & RPM | Good — suitable for normal temperatures |
| Cold start | Better — reaches engine faster when cold | Good — adequate for normal climates |
| Change interval | Longer (up to 10,000 km) | Shorter (5,000–7,000 km typical) |
| Price | Higher | Lower |
Oil filter
Spec: Hiflofiltro HF207
- Premium Hiflofiltro HF207
- Premium K&N KN-207
Air filter
Spark plug
Spec: NGK CR8E, gap 0.7-0.8 mm
- OEM NGK CR8E
- Premium NGK CR8EIX
- Standard NGK CR8E
Front brake pads
Spec: OEM front pad (EBC equivalent: FA185HH)
- Premium EBC FA185HH
- Standard EBC FA185 (organic)
Rear brake pads
Spec: OEM rear pad (EBC equivalent: FA208HH)
- Premium EBC FA208HH
- Standard EBC FA208 (organic)
Drive chain
Spec: 520 chain | Sprockets 13/50 teeth / 520 chain
- OEM OEM chain (pitch 520 (or 428 for some commuter 250s))
Front tire
Spec: 80/100-21, 0.8 bar
- OEM OEM 80/100-21
Rear tire
Spec: 100/90-19, 0.8 bar
- OEM OEM 100/90-19
Battery
Brake fluid
Spec: DOT 4
- Standard TotalEnergies HBF4
Coolant
Spec: 1.00 L coolant capacity
Service interval
Spec: 6 000 km / 12 months
- OEM Engine oil + oil filter change
- OEM Air filter inspection
- OEM Spark plug check
- OEM Brake fluid replacement: every 2 years
Valve check
Spec: 12 000 km
Suspension
Spec: 49 mm USD fork
- OEM Fork: 49 mm USD fork
