Oval chainrings don't produce more power, they increase your pedalling effectiveness. This means they reduce the component of your pedal pushing force, which doesn't contribute to moving your bike forward. The less force you waste the more energy you preserve, allowing you to push harder when it counts or simply reduce tiredness.
The only scientifically proven oval chainrings on the market. Our studies led by the University of Primorska, Slovenia show on the below video significant differences when using absoluteBLACK Oval chainrings compared to round. Up to 9% increase of pedaling effectiveness, up to 7% less oxygen consumption, up to 15% less Ventilation (breathing) and up to 10% heart rate decrease when using oval chainrings versus round. What does that mean? In short, it means that you will consume less energy at the same power output using Oval chainrings so you can ride for longer and/or faster. Our data show that the higher you climb the more effort you have to put in, therefore it's important to maximize efficiency and effectiveness and you can improve both by using oval chainrings. Watch the video.