No need to be smug. The contributors on the C & V forums are volunteer enthusiasts who enjoy sharing there expertise and knowledge, but some basic work is required by those making an inquiry or seeking input, like taking and posting photos to help with ID. If you aren't motivated or capable of doing that, try patronizing your local bike shop for free help.

Read mytenspeeds.com, a site authored by randyjawa, a frequent contributor to this board to learn the basics too. Enjoy your new ride too.

By the way, Sheldon Brown's site includes info from some of the experts who contribute here, like T-Mar, who weighed in above on your post. Look up Centurion on sheldon brown and you'll see an attribution to T-Mar.