Originally Posted by group105
It's a closely guarded secret amongst the Pros but the that Jersey increaes yuor AVG by 3mph.
All jokes aside - Saunier Duval has a special jersey for mountain stages...lightest jersey in the peleton; they claim that it will save a minute over the course of certain length stage (read it in the TDF issue of Velonews...don't have it in front of me to do the fact check)