For a while, aluminum tended to be on the back-burner when it came to high-performance bike components, but that's all changing with gear like the Niner RDO Stem. It's seriously light, at just 115g in the largest 110mm length, and strong enough to charge anything you feel like pointing your bike at. Two bolts lock onto the steerer tube, four more exercise a kung-fu grip on your handlebars, and the glossy finish looks killer on any bike.