Bikes on board

Where are the designated areas for transporting bikes on board?

I would like to take my bike on board, but the vehicle must be boarded through the front door, what should I do?

Why can bicycles be carried on board? If you are cycling, why not ride your bike to your destination?

I would like to carry my by bike on board. What type of ticket is required for transporting bikes?

Which lines will take bikes on board?