I am looking at a job in London and live in North Hampshire 4.5 miles from the rail station. Train gets me to waterloo then office is 2 miles on near StPancras. Hate the thought of commuting and the tube so was looking at bike option for one or both ends of the trip. Nice Train people will not take a full size bike so it is a fold up or somehow leave a cheap bike at Waterloo. Seen bike racks but can I leave a bike there over the weekend or overnight?? Fold up option are they any good for the journey planned? I am used to 20-40 mile leisure cycles on a racing bike. If so any thoughts on inexpensive fold up and what sort (wheel size etc) should I go for in this option?? Am I OK with a fold up on a train or do they get funny with you - do you have to bung it in a bag? Anything else I should consider that I have not looked at above? Thanks - I am getting a bit put off the Idea with all the negative posts about problems but guess you keep on doing it so it cannot be all that bad.