Giro sells two very different aero helmets under a confusingly similar name. The Aerohead MIPS is the brand’s long-running road-focused aero lid, built to be worn for an entire race including climbs. The Aerohead II is a purpose-built time trial and triathlon helmet, developed with Team Visma-Lease a Bike and wind-tunnel tested with Jonas Vingegaard…
What to Look For Aero and time-trial helmets are where triathletes can find some of the biggest free speed on the bike leg, and Giro’s flagship in that category has just had a serious update. The Giro Aerohead Mips II is not a tweak to the familiar Aerohead MIPS road helmet already reviewed on this…
What Is the Giro Aerohead MIPS? The Aerohead MIPS is Giro’s dedicated time trial and triathlon helmet, sitting alongside the newer Aerohead II as the brand’s entry point into full aero-lid territory. It trades the multiple vents of a road helmet for a smooth aero shell, a wraparound eye shield, and a magnetic quick-release visor…
Overview The MET Manta MIPS is a road-legal aero helmet aimed at riders who want measurable watt savings without stepping up to a full time-trial shell. For triathletes racing draft-illegal on a road or tri bike rather than a dedicated TT rig, that’s a genuinely useful middle ground — most of the aero benefit of…
Overview The Giro Synthe II MIPS is built to be a do-it-all road helmet rather than a pure aero shell — an aero-influenced shape with real ventilation, aimed at riders who don’t want to own a separate lid for hard training and race day. For triathletes splitting time between long turbo sessions and outdoor rides,…
Kask’s aero helmet range spans a genuine price and performance gap, and the two options that come up most often for triathletes are the Utopia Y and the range-topping Elemento WG11. Both are fast, both are well-vented for an aero lid, but they’re built around different priorities. Here’s how they compare. Key Specs Compared Weight…
What It Is Not every triathlete needs an aero helmet for every session — most of your bike hours are training, not racing, and that’s where a light, well-ventilated helmet like the Giro Helios Spherical earns its keep. It’s built around Giro’s MIPS Spherical technology (two independent layers that can move relative to each other…
What It Is The Kask Protone Icon sits between Kask’s full aero helmets and its lightest climbing lids, and that’s exactly why it works so well for triathlon. Long course bike legs demand hours in an aggressive position where overheating, not outright aerodynamics, becomes the limiting factor — the Protone Icon is built to keep…
What Is It The POC Procen Air borrows its shell shape and three large frontal vents directly from POC’s dedicated Procen TT helmet, then reworks the tail and ear coverage to make it road-legal and rideable for hours rather than just a 25-minute time trial. For triathletes weighing up a proper TT lid against something…
What to Look For The Kask Nirvana is Kask’s new flagship road helmet, already raced by Ineos Grenadiers for roughly six months before its public release. It’s built as a road aero helmet rather than a dedicated TT or triathlon aero helmet — relevant for the road-legal, non-drafting bike legs most age-group triathletes actually train…
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