Zero Motorcycles has issued a recall for 2012 Zero S & 2012 Zero DS electric motorcycles. Affecting 315 units, the recall is for a motor encoder position signal, which may drift over the course of the motorcycle’s use. If the signal drifts outside of the given parameters, the motor controller may shut off, resulting in the Zero inadvertently losing power.

Obviously, if the motor cuts out power unexpectedly, it could result in a loss of control of the motorcycle, which could lead to a crash for the rider. Zero Motorcycles will notify affected owners, and Zero dealers will reprogram the motorcycle’s motor controller free of charge. The safety recall is expected to begin on September 24, 2012.

Concerned owners may contact Zero Motorcycles at 1-888-786-9376, As always the NHTSA is available at 1-888-327-4236 and safercar.gov.