(Newser) – Henry Wolf went on a four-hour motorcycle ride back in 2010, but the resulting erection went on much longer than that: namely, two years, according to a lawsuit Wolf recently filed against motorcycle maker BMW. Wolf claims the "ridged seat" of the 1993-model-year motorcycle caused the extended erection, formally known as a priapism, the San Francisco Chronicle reports. His attorney says Wolf "has been experiencing continuing problems since his motorcycle ride," and "is now unable to engage in sexual activity." (Read more BMW stories.)