Groups of 5 people or more must ask for a special permission at Sants Railway Station. Luggage registration service no longer exists. Up to 2 bicycles in a 6-bed department. Many european train companies offer facilities, especially with regional services. Some trains have special areas for bikes.
Inspectors can deny bicycle access if trains are full, or are getting crowded along the way.
Bicycles are transported under the owner's responsibility. The same conditions as above apply. Airlines Passengers are allowed to carry up to 20 Kg of luggage. Hazardous objects, such as tools, are not allowed in the hand-luggage. You may be asked to put your bicycles in a plastic bag, which can be bought in the airport.