tour de france bikes gears

How many gears are there on a typical bike used in the Tour de France?
Or are they single speed?
The guys who rode Shimano and Sram components had 20 — 2 in front and 10 in the back. Not all combinations work well and there is some overlap. The guys who rode Campagnolo super record had 22 — 2 in front and 11 in the back. The professionals in the TdF don’t ride triples in the front. Road triples are reserved for older, slower, and weaker guys like me.
HTH
Tulsa Tough 2010 Video no II.wmv


