Who doesn't want to go faster for less effort? Around a decade ago, the category of aero road helmets sprung into life, and these days some take an unambiguously aero approach to their design with 'exhaust' vents, long tails and closed-off frontal profiles. Given their go-faster intentions, it's not uncommon for an aero helmet to be launched with claims of being a number of watts faster than another, but those comparisons are usually shrouded in mystery and relate to the brand's outgoing model or other products in its lineup. Rarely will they call out the competition. As a result, there isn't much information out there that compares across brands, such as the Specialized Evade against the Trek Ballista, or the Met Manta against the Giro Eclipse. Luckily, that's where we come in! We took 24 helmets to the Silverstone Sports Engineering Hub wind tunnel to find out, unequivocally, which is the fastest. The full feature can be found at https://www.cyclingnews.com/features/wind-tunnel-tested-which-aero-road-bike-helmets-are-the-fastest/