Honda’s own recall paperwork lays out a mechanical chain reaction inside the CBR600RR sportbike: a cylinder finishing error lets the engine burn oil faster than it should, and if a rider doesn’t catch a low oil level in time, the connecting rod bearing can seize and lock the rear wheel mid-ride. The National Highway Traffic Safety Administration logged the campaign as Recall 25V891, covering 1,253 units of the 2024-2026 CBR600RR.

What Honda Told Regulators

According to the recall filing itself, the cylinder head on affected bikes may have been improperly manufactured, a finishing flaw that lets the engine consume oil at an excessive rate. Should oil drop below the minimum level, Honda’s filing warns, the connecting rod bearing can fail, “possibly resulting in rear wheel lock up or oil leaking onto the rear tire” — either of which sharply raises crash risk, with leaking oil near hot exhaust components also creating a fire hazard. Honda notified NHTSA of the defect on December 18, 2025, and interim owner notification letters went out starting February 16, 2026. VIN-specific eligibility became searchable on NHTSA.gov starting January 7, 2026, ahead of those mailed notices. At the time of the filing, a permanent repair was still under development, with Honda anticipating parts availability around July 2026.

Riders Say the Interim Fix Falls Short

That gap between notification and repair is now the subject of a proposed class action. In Phillips v. American Honda Motor Company, Inc., filed July 3, 2026, a Kentucky rider who bought a new CBR600RR in August 2025 alleges Honda’s interim instructions put the burden squarely on owners, according to ClassAction.org. Rather than supplying replacement engine components, loaner motorcycles, refunds or buybacks, the complaint alleges, Honda told owners to monitor oil levels themselves and bring their bikes in for inspection every 300 miles — all while continuing to make loan and insurance payments on a motorcycle Honda’s own filing says can suffer sudden rear wheel lockup. The lawsuit frames that inspection schedule as a stopgap rather than a fix, since it does not address the underlying cylinder finishing error Honda identified in its NHTSA filing.

Who’s Covered

Owners can check VIN eligibility for Recall 25V891 through NHTSA’s online recall lookup tool. Honda’s filing lists a dedicated customer service line, 1-866-784-1870, referencing recall number KT5, and NHTSA maintains its own Vehicle Safety Hotline at 1-888-327-4236 for riders who believe their bike qualifies. The underlying defect description and remedy timeline in this story are drawn directly from Honda’s manufacturer notice to federal safety regulators, not from third-party claims about the bikes.