PEZ interviewed Discovery mechanic, Alan Butler, at the 2006 Giro. His response to the question: how much stuff do you have in the truck?
We have nine riders in the race, each has a race bike and a spare, except for Paolo who has two spares, then there are:- the time trial bikes and the spare time trial bikes, that makes 37 complete bikes. - 61 pairs of wheels and nine spare rear disc wheels. - five spare frames and five complete spare group sets- 20 pairs of handlebars. - nine turbo trainers for warning-up on, plus all the tools and race food. Oh, and there’s the espresso machine!” PEZ
37 complete bikes
131 wheels (61 sets of wheels and 9 disc wheels)
For Discovery alone-
At 22 teams in the Giro, assuming they travel with the same load as Discovery, that would be:
814 complete bikes
110 extra frames and gruppos
100 sets of bars
And don't forget the cars- 2 or 3 for each team, the neutral support and the race officials.
Oh yeah, and the espresso machine!