Different kinds of Handlebars What different kinds of bike handle bars are there?  All kinds welcome, the common and the nameless.  

If possible include the pros and cons of the bar

One bar per post
Flat bars
The simplest kind of handlebar, these are a straight bar with grips on the end. Flat bars were traditionally only used by cross-country riders but now you see them in more general application.

Flat bars (image credit)

Flat bars offer more space to mount lights and computers than drop bars. These bars have  bar ends attached for additional hand positions. (image credit)