| Quick Specifications – CRF450R/26 | |
|---|---|
| Model Year | 2025-2026 |
| Engine Oil | Honda GN4 10W-30 (JASO T 903 MA) |
| Oil Capacity | 1.1 Liters |
| Spark Plug | NGK SILMAR9A-9S |
| Battery | Eliiy Power HY85S-Z (Lithium-Ion) |
| Tire Sizes | F: 80/100-21 / R: 120/80-19 |
| Tire Pressure | 1.0 bar / 15 psi (Front & Rear) |
Did you know that the Honda CRF450R was the pioneer of the Unicam® valve train? This unique engineering feat allows Honda to maintain a compact cylinder head design that rivals DOHC systems in power while significantly lowering the motorcycle’s center of gravity. For the 2025-2026 model cycle (CRF450R/26), Honda has further refined the frame rigidity and intake tract to ensure this machine remains the benchmark in the open-class motocross category.
Technical Review: The 2025-2026 Evolution
The CRF450R/26 represents a pinnacle of weight management and usable torque. Under the Editor-in-Chief’s lens, the most significant advancement lies in the chassis feedback. Honda has optimized the aluminum twin-spar frame to provide a more consistent flex profile, reducing rider fatigue during high-intensity motos. The Unicam engine continues to deliver a linear powerband that is easily tunable via the Honda Selectable Torque Control (HSTC).
Maintenance Guide: Professional Standards
Engine Lubrication
To maintain the high-revving integrity of the 450cc powerplant, we recommend strict adherence to the 1.1-liter capacity using Honda GN4 10W-30. This oil meets the JASO T 903 MA standard, ensuring the wet clutch system operates without slippage under extreme thermal loads.
Electrical & Ignition
The CRF450R/26 utilizes the ultra-lightweight Eliiy Power HY85S-Z lithium-ion battery. When servicing the ignition system, only use the NGK SILMAR9A-9S laser-iridium spark plug. This specific plug is designed to withstand the high combustion pressures and lean fueling maps of modern fuel-injected race bikes.
Chassis & Handling
For optimal traction on intermediate terrain, the stock tire configuration (80/100-21 front and 120/80-19 rear) should be maintained at a cold pressure of 1.0 bar (15 psi). Deviating from these pressures can significantly alter the contact patch and the bike’s ability to track through rutted corners.
Conclusion
The Honda CRF 450 R (2025-2026) is a precision instrument. For the privateer racer or the weekend warrior, success with this machine depends on meticulous maintenance. By following the specs outlined in this MotoSpecsLab guide, you ensure that your CRF450R/26 remains “Always Red” and always ready for the podium.