It's not unusual for a motorcycle helmet to claim it's quieter and reduces tiredness. But normally it's reserved for the more expensive touring end of the market. We don't have any figures for how effective the new LS2 Stream Evo helmet is at cutting down on wind noise. But we do know that the plain and graphics options are both available for under £100. As with every LS2 helmet (Like the Valiant, Metro, Rapid and Spitfire), the shell is the firm's own 'High Pressure Theroplastic Technology'. But unlike some of the other lids, the oval … [Read more...]