Do not ride an aluminum bicycle; get rid of it asap.

It is absolutely certain that it will suddenly break on you, causing serious personal injury. In the meantime, were you to ride it up to the point where it catastrophically fails, you will cause yourself untold harm; you will permanently injure your spine through the excessive jarring caused by aluminum frames, and your hands will fall off as a consequence of excessive vibration.

ERs across the world are full of cyclists seeking treatment as a result of riding bicycles with aluminum frames. The major bicycle companies are spending untold millions defending product liability suits and at the same time conspiring to keep you, the poor consumer, in the dark about the evils of this frame material; it's a wonder any of them are still in business.

I know all this to be true; I read it on Bike Forums.