| Engine | |
|---|---|
| Model | 2021 KX250X |
| Engine Type | 4-stroke, liquid cooled, single cylinder |
| Displacement | 249 cm³ |
| Bore X Stroke | 78.0 x 52.2 mm |
| Compression Ratio | 14.1:1 |
| Valve System | DOHC, 4 valves |
| Fuel System | Fuel injection: 44 mm x 1 |
| Ignition | Digital |
| Starting | Electric |
| Transmission | 5-speed, return |
| Final Drive | Chain |
| Primary Reduction Ratio | 3.350 (67/20) |
| 1ST | 2.154 (28/13) |
| 2ND | 1.733 (26/15) |
| 3RD | 1.438 (23/16) |
| 4TH | 1.235 (21/17) |
| 5TH | 1.045 (23/22) |
| Final Drive Reduction Ratio | 3.923 (51/13) |
| Clutch | Wet multi-disc, manual |
| Frame | |
|---|---|
| Type | Perimeter, aluminium |
| Wheel Travel Front | 314 mm |
| Wheel Travel Back | 316 mm |
| Tyre | |
|---|---|
| Front | 80/100-21 (51M) |
| Rear | 110/100-18 (64M) |
| Caster (Rake) | 27.8º |
| Trail | 123 mm |
| Steering Angle (Right/Left) | 42° / 42° |
| Suspension | |
|---|---|
| Front | 48 mm inverted telescopic fork with adjustable compression and rebound damping |
| Rear | Uni Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable preload |
| Brakes | |
|---|---|
| Front | Single semi-floating 270 mm petal disc with Dual-piston calipers |
| Rear | 240 mm petal disc with Single-piston caliper |
| Dimensions | |
|---|---|
| L x W x H | 2,170 x 820 x 1,260 mm |
| Wheelbase | 1,480 mm |
| Ground Clearance | 330 mm |
| Seat Height | 945 mm |
| Curb Mass | 109.2 kg (includes full fuel tank, all fluids at optimum levels) |
| Fuel Capacity | 6.2 litres |
| Performance | |
|---|---|
| Colour/s | Lime Green |