The Fresno County Sheriff's Office identified the woman as 32-year-old Youa Xiong Saturday afternoon.
CHP officers say Xiong veered onto the dirt shoulder and lost control near Ashlan and Highland Avenue just after midnight.
A man on a motorcycle took a quick turn to avoid hitting her and he was also thrown off his bike. But then a man driving a white Toyota Corolla was unable to avoid her. The car hit Xiong and she died at the scene.
Officers say the Corolla's driver stayed at the scene and cooperated with their investigation.
Officials are trying to piece together what caused the initial crash.
The video above is from an earlier broadcast.