Just a couple of uick thoughts, having read a few of the posts on here. Firstly, the amount of absolute CLAPTRAP on here is amazing, There is NO WAY a FULLY FIT, Candy-driven Vino could even STAY with any of Menchov/Evans/Conti/Basso/Kreuzeiger/Schleck etc. So the idea of him riuding for himself would simply be delusional - unless he would rather finish 10th himself and have Conti maybe only finish 2nd then have Conti finish 1st. Not to mention Contador is also a better Time Triallist than Vino.
Secondly -= if Conti and Vino had have tried to change bikes 20 km from the end, 2 things would have happened - Contador, AT BEST, would have stuck with the group (gaining 20 secs from himself - 20 secs that I honestly can't see playing a difference unless he has about his worst day ever in a mountain stage AND has a REALLY bad TT), and secondly he would have expended a LOT more energy - possibly too much meaningat the weekend a couple of rearly gaps could catch him out.
On top of that, Vino would have lost a lot of time, AND worn himself out in the process, probably leaving him too exhausted to help (think the amount of effort he put in, the double it because of him riding of Alberto's faulty bike)
Also, if Conti had stopped in last km, there was no real guarantee the race organisers would have given him the same time as the vino group = they didn't when he clearly had a problem and struggled on with it so they may not have if the same problem had caused him to change bikes if they judged it actually happened earlier than 30 km (what they did when decidiong the result in reality). The chances of 20 secs being the difference between winning and coming 2nd, I would say, are about 1%. The odds that the race organisers didn't give him the s.t. as Vino et al was probably about that, maybe 2-3%. IF he had chosen to wait for the car and change it, he, at best, would have lost a couple of minutes (waiting for the car etc as IIRC it was a fair bit behind) - and those 2+ mins would have been MUCH more likely to cost him the tour. Overall, it was exactly the right decision.
And as many pointed out, after having being flat out at the front of the pack, and having confirmation that their radios weren'#t fully functioning, there was almost 0% chance Vino would have been able to notice conti was off the back, and even then, by the time he had dropped back and got ready to help, Conti wouldn't have been able to bridge back - best case scenario MAYBE gaining 5 secs compared to where he was in reality.
Final thoughts re: the whole team - last year, pretty much the ENTIRE team were against Conti - thus the mass exodus to help LA as soon as they could. Even *if* Vino gets a little delusional and stops riding for Conti and starts attacking early in mountain stages without asking, a) its GOOD for Conti as the *Other* teams (especially Saxo and RS) would be the ones who would have to go and chase him down and b) Conti has the rest of the team, including some VERY strong (probably STRONGER than RS IMO) mountain domestiques (Perrero, Fuente, Tiralongo ...) who are 100% behind conti to help him along.