Honda CRF 450 RX (2022) — Specs
Identity
Manufacturer: Honda
Model: CRF 450 RX
Category: Off-Road Bike
Type: Off-Road Bike
Years: 2022 → 2022
Engine
Displacement (cc): 450
Cylinders: 1
Torque (Nm): 49
Dimensions
Overall length: 2280 mm
Overall width: 825 mm
Overall height: 1235 mm
Wheelbase: 1495 mm
Ground clearance: 320 mm
Tires
Front tire: 80/100-21
Rear tire: 120/80-19
Drivetrain
Drive chain: chain 520ER
Sprockets (front / rear): 13 / 50
Ignition
Spark plug: NGK SILMAR9A-9S
Plug gap: 0.8-0.9 mm
Fluids & Filters
Engine oil: SAE10W-30, API SG
Oil filter: Hiflofiltro HF116
Air filter: Hiflofiltro HFA1108
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-30, API SG. Spark plug: NGK SILMAR9A-9S (gap 0.8-0.9 mm). Brake fluid: DOT 4. Chain: chain 520ER, sprockets 13/50 teeth. Tire size: front 80/100-21, rear 120/80-19. 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: SAE10W-30, API SG
- OEM OEM recommended engine oil (SAE 10W-30)
- Premium Motul 7100 4T (100% Synthetic, Ester)
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 HF116
- Premium Hiflofiltro HF116
Spark plug
Spec: NGK SILMAR9A-9S, gap 0.8-0.9 mm
- Premium NGK SILMAR10A-9S
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)
Front tire
Spec: 80/100-21
- OEM OEM 80/100-21
Rear tire
Spec: 120/80-19
- OEM OEM 120/80-19
Brake fluid
Spec: DOT 4
Coolant
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
Air filter
Spec: Hiflofiltro HFA1108
- Standard Hiflofiltro HFA1108
Drive chain
Battery
Spec: OEM battery: Yuasa YTX5L-BS
