People who cycle to work

...You can put some more push into it when riding a bike if you're running late, but you cant exactly tell the driver to step on it...

...Surely there must be a reason why people choose to take the bus..over cycling

Bus/Train esp. Round cambridge is warmer, no?

and +1 about more push,

150mi/week keeps me fit, 15mi each way, 50mins, not pushing it
(yeah i'm geared for it) it also is really relaxing, and most of all, time to think
which is definately a +1