The bicycle library
Inside a converted double decker bus in East London resides the Bicycle Library. From the bus you can borrow one of seven different types of bikes. These are: Folding MiniVelo FixGearSingleSpeed (FGSS) LadiesCoaster MensCoaster Cargo Electric You can then either test this bike out around the circuit or, with a deposit, ride it away for [...]
Source: http://www.londoncyclist.co.uk/cycling-london/the-bicycle-library/