I did have trike to start with but had forgotten fixie. It would only let me have so many options , I wanted a penny farthing in there tooUnicycle, trike and sociable are missing options.....
mtb, can go on both road and off road, whereas the road bike cannot do the latter. living so close to london means the over crowded roads are not pleasant to ride on.

Tiddles, my Brompton.
He does everything I need from a bike: Slow gentle rides, fast sprints, carries a lot of luggage, pulls a heavy trailer, folds up small for public transport or the boot of the car, doesn't take up much space in the house, carries his own tools and spares.
Ridiculous.
Can't we just have a 'which child would you sell to pay for another bike' thread instead?