Recall 19V412 affects 3,898 2018-2019 Honda CB300R, CMX300, CRF250L, and CBR300R motorcycles for transmission gear misalignment. Repair is free at any franchised Honda dealer.
Honda is recalling 3,898 2018-2019 CB300R, CMX300, CRF250L, and CBR300R motorcycles because a circlip on the transmission main shaft can detach and misalign gears. That can move the motorcycle unexpectedly at startup or lock the transmission and rear wheel while riding, which increases the risk of a crash or injury; Honda dealers will complete the repair free of charge.
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What's wrong?
The transmission main shaft in the 2018 and 2019 Honda CB300R, CMX300, CRF250L, and CBR300R motorcycles carries gears that transfer engine power through the manual transmission. A circlip is a small retaining clip that holds those gears in the correct position on the shaft. The transmission depends on that clip staying seated in its groove.
On these motorcycles, a supplier machining error left the groove for that clip out of specification, and the assembly jig deformed the clip during assembly. That combination lets the circlip detach from the main shaft. Once the clip moves out of place, the gears no longer stay aligned. The motorcycle can move unexpectedly during engine start or the rear wheel can lock.
There is no warning sign before failure. The problem is inside the transmission, so an owner is not given a reliable sound, light, or feel before the clip detaches.
Who's affected?
Spans four Honda motorcycle models across the 2018 and 2019 model years, all tied to the manual transmission.
| 2019 Honda CB300R | manual transmission |
|---|---|
| 2018 Honda CMX300 | manual transmission |
| 2019 Honda CMX300 | manual transmission |
| 2018 Honda CRF250L | manual transmission |
| 2018 Honda CBR300R | manual transmission |
| Units affected | 3,898 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific motorcycle is included.
What's the safety risk?
A misaligned gear can let the transmission shift from neutral into gear during engine start, causing unexpected motorcycle movement. It can also seize the transmission and rear wheel while the motorcycle is moving. Both conditions increase the risk of a crash or injury. If your VIN is included, schedule the repair soon. Repair is free at any franchised Honda dealer.
What should I do?
- Check your VIN to confirm your 2018-2019 Honda motorcycle is included: CB300R, CMX300, CRF250L, or CBR300R.
- Contact a franchised Honda dealer to schedule the free transmission main-shaft replacement that fixes the gear-misalignment risk.
- Bring the recall notice if Honda mailed one. If not, reference recall number 19V412 when you call.
- Use extra care before the repair because gear misalignment can cause unexpected movement at start or rear-wheel lockup while riding.
What happens at the repair
At the dealer, a Honda technician replaces the transmission main shaft. That repair addresses the circlip on the main shaft, which can detach and allow the gears to move out of alignment. Parts and labor are free under recall 19V412. If you've already paid out of pocket for a related transmission main shaft or circlip repair, Honda's standard reimbursement plan covers documented expenses. Bring repair invoices or receipts to the service desk.
| Reimbursement | Reimbursement available |
|---|
Timeline
| May 31, 2019 | Dealer notification began |
|---|---|
| May 31, 2019 | Dealer notification ended |
| June 4, 2019 | NHTSA published the recall |
| June 28, 2019 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| June 28, 2019 | Interim owner notification (was planned for this date) |
| July 8, 2019 | Owner notification mailed |
Frequently asked questions
What is recall 19V412?
Recall 19V412 covers 3,898 2018-2019 Honda motorcycles with a transmission main-shaft circlip that can detach and allow gear misalignment. The affected models are the 2019 CB300R, 2018-2019 CMX300, 2018 CRF250L, and 2018 CBR300R. Honda dealers replace the transmission main shaft for free.
What should I do if my 2018-2019 Honda CB300R, CMX300, CRF250L, or CBR300R is on this recall?
Check your VIN to confirm your specific motorcycle is included in recall 19V412. If it is, contact a franchised Honda dealer to schedule the transmission main-shaft replacement. Reference recall number 19V412 or Honda recall number KK3 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Honda's remedy says dealers will replace the transmission main shaft free of charge. Parts and labor are covered at any franchised Honda dealer handling this recall.
What is the safety risk?
The transmission can shift from neutral into gear during engine start or seize the transmission and rear wheel while the motorcycle is moving. Either condition increases crash or injury risk. Confirm your VIN, then arrange the free Honda dealer repair if your motorcycle is included.
When did Honda start this recall repair?
Honda began the recall on July 8, 2019. If your VIN is included and the repair has not been completed, contact a franchised Honda dealer for the free transmission main-shaft replacement. Honda customer service is available at 1-866-784-1870.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/19V412000 |
|---|---|
| Honda customer service | 1-866-784-1870 |
| NHTSA recall # | 19V412 |
| NHTSA recall # (full) | 19V412000 |
Source documents
-
Download Misc. Document (PDF) - Download Recall Document (PDF) (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →