Met rivale womens helmetmets rivale womens helmet is the lightest in its class weighing only 230g med and 250g lge met engineers spent hours in wind tunnels with the support of team dimension data for qhubeka to research the best aerodynamic performances the outcome of this research culminated in the manufacture of the rivale helmet the specific shape of the rivale enables a rider to gain a 1 second time advantage compared to other similar road helmets lightweight and aerodynamic cycl