Put simply: if you take a “T” shaped pipe and pass a fluid (such as air or water) through the straight section, a vacuum will be created on the shorter side due to the Venturi effect.

In essence, a venturi is a tube with a narrow section, wherein a fluid—in this case, air when the motorcycle is in motion—flows faster through the narrow section. The Bernoulli effect states ...

Using the Venturi effect, POC's well-known approach to airflow whereby the air speeds up as it passes through a constricted ...