Two women needed emergency brain surgery within six days of riding Six Flags Magic Mountain’s X2 roller coaster. The incidents have raised fresh questions about the safety of the ride. X2 has been closed since July 12. The roller coaster is located at Six Flags Magic Mountain in Valencia, California.Six Flags X2 remains closed after two women needed emergency brain surgery within six days. Here’s what we know about the ride’s injury history and safety. (REUTERS/David Dee Delgado) (REUTERS)Six Flags has not explained why X2 was closed. The company has only said that “the ride remains closed at this time.” California regulators are still inspecting the ride. Six Flags roller coaster brain injury reportsState officials have not yet announced when the inspection will be completed or when X2 could reopen, according to a CNN investigation. X2 is one of the park’s best-known roller coasters. The ride has seats that rotate 360 degrees while the train travels at speeds approaching 80 mph.A review of medical records, court filings and depositions found more than a dozen serious injury and hospitalization reports linked to X2 over nearly two decades. The CNN investigation found that some riders suffered permanent disabilities or went into comas.Also read: Piggly Wiggly stores closing: Full list of locations shut down across US as staffing issues hit grocery chainX2 injury historyTwo people have died after suffering injuries linked to the ride. One death happened in 2010 and another in 2022. Experts say serious brain injuries from roller coasters are generally very rare. Lyndia Wu, a mechanical engineering professor at the University of British Columbia who studies the effects of roller coasters on the brain, said individual high-risk rides such as X2 may need more study.Three neurosurgeons who treated the two women injured in July disagreed with that argument. They said the women suffered severe brain injuries because of a rapid acceleration and deceleration event while riding X2.Rider dies hours after X2In June 2022, 22-year-old Christopher Hawley rode X2 with his brother and cousin. Hawley was a recent college graduate, according to court records. Hawley became lightheaded after getting off the ride. He later collapsed and lost consciousness.Doctors found severe bleeding inside Hawley’s head. The bleeding was putting pressure on his brain and forcing it toward one side of his skull. Hawley’s brain swelled badly during emergency surgery. Court records say he died less than 10 hours after riding X2.