| Bike | 2021 Honda CRF250RX |
| Standard Maintenance Interval | 7.5hrs |
| Engine Oil Change Interval | 15hrs |
| Initial Valve Check | 15hrs |
| Periodic Valve Check | 15hrs |
| Engine Oil Capacity With Filter Change | 1.12L (0.296gal.) |
| More on Engine Oil | SAE 10W-30, JASO T 903 standard MA, Pro Honda GN4 4-stroke oil (USA & Canada) or Honda 4-stroke oil, or an equivalent motorcycle oil |
| Idle Speed RPM | 2,000 +/- 100 |
| Coolant Capacity | 1.09L (0.288gal.) or 0.94L (0.248gal.) at draining |
| Sparks | NGK R0451B-9 |
| Spark Plug Gap | 0.6 – 0.7mm |
| Final Drive | Type: Chain 520 Final Drive Ratio: 13 / 48 |
| Front Wheel | 90/90-21 90/90-21 54M DUNLOP AT81F |
| Front Wheel Pressure (solo/dual riding) | 15psi (1.03bar, 103.42kPa) |
| Rear Wheel | 110/100-18 110/100-18 64M DUNLOP AT81 |
| Rear Wheel Pressure (solo/dual riding) | 15psi (1.03bar, 103.42kPa) |