The crash occurred at 7:37p.m., said Officer Patrick Kimball of the California Highway Patrol.
Both the victim and his motorcycle ended up on Red Rover Mine Road at Sierra Highway.
Kimball identified the victim only as a Hispanic male born in 1957.
Los Angeles County Fire Department personnel pronounced the man dead at 7:59 p.m., Kimball said.
The roadway was fully open at 10:08 p.m.
Motorcyclist Killed in Solo Crash in Acton
