Road cycling has a proven fascination with aerodynamics. The faster your go, the more airflow matters.
From skintight attire to ovalized seat posts and deep-section
carbon wheels, engineers do everything to make rider and bike flow along, with the
least possible aerodynamic drag.
Sharp edges and low-pressure zones are some of the enemies in cycling aero. Some of those issues become apparent when you scrutinize a road bike's drivetrain, with its pulley wheels and sharply cut teeth.