The front arms of the pn 11 feature a contoured downward slope this can aid in allowing the rider to roll their hips forward for high power output or for increased comfort with a high amount of saddle to handlebar drop introduced in 2011 and all about performance isms winning design allows for increased hip rotation thus decreasing a riders aerodynamic drag and opens the diaphragm for easier breathing riders report an increase in wattage due to the more aggressive positioning sloped fr