On certain motorcycles, the combined brake system?s secondary master cylinder may cause the rear brakes to drag. Unexpected braking may adversely affect vehicle stability, which could result in a crash. As well, continued riding with the rear brake engaged/dragging may generate enough heat to cause the rear brake to catch fire. These issues could result in property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the secondary master cylinder with an updated version.