Honda says some motorcycles may be equipped with drive chains that contain outer drive plates that were improperly heat-treated, resulting in plate fracture during use. If a plate breaks, the the motorcycle can unexpectedly lose propulsion, increasing the risk of a crash.Honda will notify owners, and dealers will inspect and, if necessary, replace the drive chain, free of charge. The safety recall is expected to begin on October 8, 2012. Owners may contact Honda customer service at 1-866-784-1870.Honda’s recall campaign number is S54. Owners may also contact the National Highway Traffic Safety Administration’s Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153), or visit safercar.gov.