In defending the city against a lawsuit brought by the family of a San Francisco musician who died after riding the Cyclone last year, a city attorney is insisting that the roller coaster's potentially fatal dangers are "obvious." While riding the Cyclone on his birthday in July 2007, 53-year-old Keith Shirasawa fractured three neck vertebrae and died four days later after complications from surgery. In the lawsuit, his family contends that the Parks Department is at fault for not regularly inspecting the landmark ride. But city attorney Cynthia Goldman argues that "any and all risks, hazards, defects and dangers to the extent alleged are of an open, obvious, apparent and inherent nature known and should have been known to [Shirasawa]," according to court papers obtained by the Daily News. Shirasawa family attorneys blame the injury on a malfunction that made the Cyclone drop too fast, and an "antiquated" single position lap bar.