NHTSA lists 2 safety recalls for the 2018 Honda CMX300. The newest, from July 30, 2026, covers the steering. Not every Honda CMX300 of this year is affected: check your VIN to see whether yours is, and whether the free repair has been done.
2 recalls, newest first
RecallJuly 30, 2026
Steering › steering wheel/handle bar
Honda (American Honda Motor Co.) is recalling certain 2017-2023, 2025 CMX500, 2017-2023, 2025-2026 CMX300, and 2025 Honda SCL500 motorcycles. The handlebar lock screw may loosen and detach.
Risk: A detached screw may lodge between the frame and stem, interfering with steering and increasing the risk of a crash or injury.
Fix: Dealers will replace the lock screw and apply thread lock, free of charge. Owner letters were mailed September 29, 2026. Owners may contact Honda's customer service at 1-866-784-1870. Honda's number for this recall is KU8. This recall expands previous NHTSA recall number 26V146. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning August 4, 2026.
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.
Risk: A misaligned gear can shift the transmission from neutral into gear during engine start, potentially resulting in unexpected motorcycle movement or seize the transmission and rear wheel while the motorcycle is in motion. Both conditions increase the risk of crash or injury.
Fix: 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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Enter your 17-character VIN on NHTSA's site to see which of these recalls apply to your car and whether they've been repaired. Repairs are free at any Honda dealer.
Recalls come from the National Highway Traffic Safety Administration's recall database, with the list of models updated October 7, 2026. A recall applies to some vehicles of a model year, not always all of them: your VIN tells you whether yours is included and if the free repair has been done.