... 3AL-2.5V)/carbonSpecification normal tube, special ti-carbon top tube and down tube, Engraving patterns; ... of all the metals, including aluminum, steel and carbon fiber, TSB chose titanium. We love titanium because its ... it the ability to resist being eroded by contact with outside materials such as dirt, sand, ice, ... mud, etc. You may enjoy a lifetime riding with it.3.Low Density (low weight)Titanium is ...