#59511

I was curious

From http://www.frostbytes.com/~jimf/biking/ … unobtanium

unobtanium adj. describing a bike or accessory made from expensive, high-tech material. A play on “unobtainable” and “titanium.” n. a piece (of god knows what) that has come off from the inside of something else and rattles around, impossible to retrieve to stop the rattling. E.g. a piece of weld comes off of the inside of a bike frame.