The Aeria is Profile's new top-of-the-line bar. It's based on modern bar design and is a beautiful match for modern bikes. It's clean, elegant, easy to adjust, and is by far my favorite Profile bar ever made. That's not to say it's perfect, because it does have some quirks of its own. But this is a VERY good bar that will work well for a lot of riders. Have a look at the full article for the breakdown of how this bar works.