Ovalized chainrings take advantage of math and biology, increasing their diameter when you're in your power stroke. This gives you the most bang for your pedaling buck, increasing efficiency, traction, and power. The Wolf Tooth Components Powertrac Elliptical Drop Stop Chainring for SRAM Direct Mount is a little less oval than most, so it doesn't feel overly funky. If you must pedal, you may as well get it over with as soon as possible!