AbsoluteBLACK is creating a furore in the world of cycling with its Narrow-Wide oval chainrings. Oval chainrings support a more efficient pedal stroke. According to AbsoluteBLACK it is difficult - due to the human musculature - to exert an even power output on the pedals. With the oval chainrings from AbsoluteBLACK the peak load on the knee joints is reduced. This allows for a more even pedal stroke, making it easier to find a cadence. With the Narrow-Wide chainrings you can easily build a single, double or compact crankset. Ideal for the avid cyclist, mountain biker and cyclocrosser.