what's the longest ride you have ever done? i ask because your bike looks uncomfortable for any decent distance riding. its aluminum, for one, but the drop of the bars and the decline of those GT top tubes could mean discomfort after a could day's riding. i had a GT Pulse, and it was def made for the track, though you could ride it on the street, but anything over maybe 30/40 miles, i dont know. seriously, SF to LA can be done fixed but I would seriously consider a different ride.