At 120 km/h (75 mph), the world’s fastest Human Powered Bicycles are doing what they do best: going unbelievably fast on normal, flat courses with little or no tail wind assistance.

Bicycling and walking may reduce tailpipe emissions, but if your diet is “meat heavy” you are using twice as much energy just reading this post. On the most basic level, it’s actually better to be a vegetarian that drives a Chevy Tahoe, than to be a meat eater that bikes or walks everywhere.