the Pro race teams strike deals with the manufacturer's of their gear
and the bikes are part of the manufacturer's promotional and product development budget,
as millions of people watch the races, then go out and buy the brands their heroes ride.

For a market survey , check with the Bicycle Dealers association, (USA)
and see if there is sales data that they collect .

on a bike list like this you get opinions , to do a market survey, you need numbers ..