Carrying a bike by public transport is usually quite straight forward. However, there are sometimes restrictrictions so it is best to plan ahead and find out what they are. Folding bikes can be the answer if you travel by public transport regularly.
Taking bikes by public transport can be easy when you know how
AtoB magazine has a wealth of information about every train operating company and ferry service in the UK, plus advice about how to book your bike on a train and coach and tram restrictions. It also has information about taking a cycle to Europe. Seat61 is also a great resource if you want to take your bicycle by train beyond the UK.
For Cycling UK's views on taking cycles on public transport, read our cycling and local transport or cycling and air travel and cycling and rail policy documents.