Hi Donald,

Most or all of the "Titanium" used in the backpacking, climbing, and I presume bicycle industry is actually an alloy with amongst other elements Aluminum. Yes it would be lighter than Steel, and generally close to the strength of Steel. However, it is generally heavier but stronger than Aluminum. Additionally, however, the Titanium alloys are expensive and more difficult to work, weld, anodize, or paint than either Steel of Aluminum.

Rich