After everyone confused this object with a bong, it was revealed to be the power meter. There was a fan at the bottom of the tube whose speed was regulated by the power being generated by the cyclists. As they pedaled, an empty beer can would move up and down the tube--into the red if they were pedaling too much and into the orange if they were not pedaling enough.</p></p> </body></html>

nan.io

Bicycle Music Festival