answered:
Yes!
But there are several requirements, firstly, Reservations are required on all trains that offer bike service except on the Capitol Corridor and San Joaquins. Additionally it has to be stored in Baggage on these trains
And stored on a Bike rack on these trains
On all route not mentioned they
Oh thank you for telling me @mossandfrog I was going to say if a route wasn’t listed then bikes were not allowed on the train unfortunately