To reiterate for the OP: the bike is the TCR model, not the "ONCE". This particular bike is a team replica in ONCE livery. ONCE was a great, dominant Spanish pro team in the 90s and early 00s. ONCE is pronounced "Ohn-Say" and the title sponsor is a Spanish non-profit. Much of the organization of ONCE went on to found the current Astana team.
This is a very important bike in the history of road bikes. The design was revolutionary at the time and changed how road bikes look permanently. This bike was designed by Mike Burrows, who also designed probably the most iconic track bike in history the Lotus 108. The "compact" design of the TCR allowed manufacturers to get away from making lots of different sizes and just make a few. Even though this bike is aluminum, this reduction in available sizes became very important with carbon frames. With carbon frames, each frame size requires a separate, expensive mold and limiting the available sizes dramatically reduces production costs. Every road bike today has some DNA from the original TCR in it.
Last edited by Hiro11; 08-16-22 at 07:14 AM.