So you want to get some cycling practice but you're worried about all of the reckless drivers out there. But you don't want to resort to one of those lame stationary bikes, either. The solution? Free motion bicycle rollers.
I would love to bike more often, but the thought of cycling here in New York City is utterly daunting. This alternative, however, seems even more terrifying.
If you want to brave your unfinished basement on two wheels, a free motion set up only costs about $US35 in parts and can be assembled by following this Instructable. Just don't say I didn't warn you. [Make and Instructables]