For the records, here is a list of Seoul subway lines you may bring your bicycle along. First column is weekdays, second is Saturday, Sunday & Public Holiday. Valid as of July 6, 2013
- Folding bikes are excluded, they can always be brought along
- Bringing a bike is free.
- You are supposed to use the first or last car
- You are supposed to use the stairs (not escalator/elevator). Most stairs have rails at the sides to push bikes up/down
- It’s always a very bad idea to use the subway during rush-hour (7:00-9:00, 18:00-19:30), allowed or not