FRIDAY, MAY 18, 2012 AT 1:34PM
What is interesting from the film is how nearly every part needed to make the bike is manufactured by one company. Today, many of the specialized components are purchased from separate manufacturers.
The modern version of the bicycle has not really changed in decades. It may be that the design of the double diamond bicycle is more or less optimized given the materials available.
A rider can only supply so much power in a seated riding position. The bike has to be designed around those constraints. New technologies such as electric assistance free the design to optimize around convenience, comfort, and the job to be done by the bicycle.