Honda CB300R maintenance schedule & recalls
2019–2026
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Maintenance schedule
General guidance — based on common manufacturer intervals| Service | Interval |
|---|---|
| Oil & filter | every 4,000 mi or 6 months |
| Chain & sprockets | every 600 mi or 3 months |
| Brakes | every 12 months |
| Valve adjustment | every 16,000 mi or 24 months |
| Battery | every 12 months |
| Spark plugs | every 8,000 mi or 24 months |
| Fluids/coolant | every 24 months |
Recalls
Honda (American Honda Motor Co.) is recalling certain 2018-2025 CB300R motorcycles. The headlights may flicker or shut off while driving.
Remedy: Dealers will replace the headlight assembly, free of charge. Owner notification letters were mailed May 27, 2025. Owners may contact Honda's customer service at 866-784-1870. Honda's number for this recall is KS0.
Honda (American Honda Motor Co.) is recalling certain 2019 CB300R, 2018 CBR300R, 2018 CRF250L, 2018 CRF250L Rally, and 2018-2019 CMX300 motorcycles. The circlip, on the transmission's main shaft, may detach allowing for gear misalignment.
Remedy: Honda will notify owners, and dealers will replace the transmission main shaft, free of charge. The recall began July 8, 2019. Owners may contact Honda customer service at 1-866-784-1870. Honda's number for this recall is KK3.
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Common questions
How often should the oil & filter be serviced on a Honda CB300R?
Service every 4,000 mi or 6 months for the Honda CB300R (2019–2026).
How often should the chain & sprockets be serviced on a Honda CB300R?
Service every 600 mi or 3 months for the Honda CB300R (2019–2026).
How often should the brakes be serviced on a Honda CB300R?
Service every 12 months for the Honda CB300R (2019–2026).
How often should the valve adjustment be serviced on a Honda CB300R?
Service every 16,000 mi or 24 months for the Honda CB300R (2019–2026).