Harley reports that due to gas bubbles in the clutch master cylinder, the clutch is unable to fully disengage. The risk is greater if the bike has been parked for a long time, Harley says. If this occurs, the bike could remain stuck in gear, increasing the risk of a crash.To date, Harley reported 27 crashes and four injuries due to this issue.Speaking in a release, Harley says ”First and foremost, we apologize to our customers for this issue. We’re riders, too, so share in the frustration. Customer safety is our first priority.”Recall notices are already being issues, and Harley will flush and rebuild the clutch master cylinder free of charge.Harley’s first recall of 2015 arrived in January, and affected Softail and Dyna owners. Harley reported that 19,015 of these motorcycle could possibly suffer from corroding bolt issues on the front-brake master cylinder.