2019 Honda CB300R: common problems
Owners of the 2019 Honda CB300R filed 3 complaints with NHTSA, most often about powertrain and engine. The maker issued 1 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 3
- Technical service bulletins (TSB)
- 1
What fails most often
- 1 Powertrain 67% of all complaints
- 2 Engine 33% of all complaints
- 3 Structure 33% of all complaints
- Powertrain: 2 complaints (67% of all).
- Engine: 1 complaints (33% of all).
- Structure: 1 complaints (33% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Powertrain | 2 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
| Engine and cooling | 0 | 0 | 1 |
| Equipment | 0 | 0 | 1 |
| Other | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
This vehicle is subject to an open recall (NHTSA Recall 19V-412) involving a transmission mainshaft circlip that can detach and cause gear misalignment and shifting issues. Prior to service, the motorcycle exhibited a symptom where it would not shift or operate properly beyond 4th gear.
I was riding thru a turn on my 2019 honda cb300r and when I started to accelerate out of it in 2nd gear it popped out of second and down into neutral causing me to lose traction and fall onto my left side. Luckily I walked away with only some road rash.
Tl* the contact owns a 2019 honda cb300r motorcycle. The contact received notification of nhtsa campaign number: 19v412000 (power train). The contact called station park honda at [phone] (located at 830 s 9th st, louisville, [ZIP]) and was informed that the parts were not available.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 17,150 of 36,656 model years in the NHTSA data (top 47% most complained about).
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- The Wrench - If the right engine cover is leaking coolant on any of the models listed, this could be due…
The Wrench - If the right engine cover is leaking coolant on any of the models listed, this could be due to the water pipe causing a gap at the clutch cover side. Replacing the O-ring will not fix the leak. Instead…
Questions and answers
What are the most common problems with the 2019 Honda CB300R?
Owner complaints to NHTSA most often mention: powertrain, engine, structure. Total complaints: 3.
How many service bulletins (TSB) were issued for the 2019 Honda CB300R?
NHTSA lists 1 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2019 Honda CB300R from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2019 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.