Angelina Jolie and Brad Pitt’s second eldest son, Pax, 20, got into a horrifying e-bike crash on July 29 in Los Angeles, Calif., and now more details are coming to light about his riding habits. According to an insider, Pax has gotten into “multiple” electric bike accidents prior to Monday’s crash — and he also never wears a helmet. “His friends are concerned about him,” the insider told Page Six. “He’s being reckless. They’re worried.” The insider added that Pax has been “consistent” about never wearing head gear while on his vehicle even though he’s been involved in other accidents. As OK! p…