Black by absoluteblack narrow wide oval xt m8000 chainringoval chainrings work because the rider does not produce power evenly through the pedal stroke they maximize the part of the stroke where power is produced and minimize resistance where it isnt you will actually feel your stroke to be more round with an oval shape than with a round chainring featuresoval rings help the rider spin smoother gain a lot more traction in terrain and are easier on legs while climbing32t is equivalent to 3