Discovering who or what caused the motorcycle accident that injured you is going to be central to your case. The goal of the investigation following the crash is to determine who is responsible for causing the crash and who can be held liable for your injuries and other losses. Some of the common causes of motorcycle crashes include: Speeding Motorist failing to see the motorcyclist and turning left into his or her path Poor weather conditions Defective roadway, crumbling asphalt Debris in the roadway Potholes Defective motorcycle parts Reckless, careless driving