The generic road bike in my sig is a GMC with some parts the LBS put on it. I didn't think anyone paid enough attention to those to list it in my sig haha. Mine is the older 16 speed one with normal road bike gearing, non "aero" wheels, & the STI style shifters. The bottom bracket does that on mine as well. I plan on replacing mine soon and it seems to use a standard 68mm bottom bracket. The frame seems pretty good and I bought it mostly so I can build it up while having something to ride.
It is a good bike for 90% of the cycling most people do around town. I put around 20-25 miles on it per week and no failures yet.