UCI bans Specialized 'head sock', puts new Giro helmet under investigation
UCI aims to curb design trend, which 'focuses ź§more on performance than the ꩲprimary function'

Just hours after Team Visma-Lease a Bike broke the internet with the unveiling of the 168澳擲ā±5ęę°å¼å„ē»ę:beyond-wild Giro ꩲAerohead II time trial helmet, the UCI has issued a sštatement, announcing it will carry out an "in-depth analysis" of its rules governing time trial helmet designź¦.
Within the statement, it announced it is banning the 'Head Sock' which features inside 168澳擲5ęę°å¼å„ē»ę:Specialized's TT5 helmet, first ź¦shown at the 2022 Tour de France and used regularly by sponsored riders since.
Over recent years, 168澳擲ā5ęę°å¼å„ē»šę:time trial helmets have gotten weirder. They're bigger, wider, and more bulbous than ever as engineers and aerodynamicists attempt to push the boundaries of the rulź§ebooš¼k to find free speed.
That culminated in Giro unveiling a helmet with a huge protruding leading edge, sitting some 20cm highš¦er than the wearer's head, while shrouding the rider's shoulders, essentially pushing air smoothly around the rider's body. It's a technique that other brands have employed, too. For example, the Sweet Protection Redeemer 2Vi, which is used by Uno-X Pro Cycling, and the POC Tempor, used by multiple teams. Elsewhere, Ineos Grenadiers, who use the less radical Kask Bambino Pro, have been known to upsize their helmet - essentially wearing one š°that's a few sizes too big - to achieve a similar effect, while adding wind deflectors to the lens.
The UCI's statement, which bears the title 'The UCI toš carry out an in-depth analysis of the regulations governing the design and use of time trial helmets,' begins by saying that "the constant quest for improved performance and ever-increasing attention given to detail is leading professional teams and equipment manufacturers to develop their equipment more often and with ever more radical designs."
Evidently, this process was already𤪠underway before the social media storm that surrounded the Visma-Lease a Bike team on the opening stage of Tirreno Adriatico, as the statement continues to say that the UCI has already Speciališ»zed that it had undertaken a review of its latest helmet.
"After conducting a thorough process, which included consultation with Specialized, as well as examination of documentation linked to the helmet’s certification, safety instructions, and information from public sources, it was concluded that the Head Sock is a &lš¼dquo;non-essential” component (article 1.3.033 of the UCI Regulations).
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"As a result, the Head Sock integrated into the TT5 helmet will no longer be permitted for use at events on the༺ UCI International Calendarꦫ, effective from 2 April, 2024."
Specialized responds
Cyclingnews reached out to Specialized for comment on the maꦿtter, and the brand expressed disappointment š°in the decision, which comes more than a year and a half after the product's first use, and which ultimately undoes months, if not years, of research and development.
"After 18 months of racing, the UCI has informed us of their decision to ban the head sock feature that is manufactured on the current TT5. Specialized is disappointed in this decision as it greatly impacts ouār riders and teams that have spent a significant amount of time preparing with the equipment that was UCI approved. We’ll continue pushing the boundaries of innovation to support our athletes with the highest performing product possible.”
"The primary function of a helmet"
The statement then turns its attentšion to the Giro helmet at the centre of the Visma Lease a Bike furore; the Rudy Project Wišndgream HL 85, which went comparatively under the radar on the heads of Bahrain Victorious riders; and the similarly radical POC Tempor. One presumes it will also encompass the aforementioned Sweet Protection Redeemer helmet too, although this model isn't explicitly named in the statement.
"The UCI acknowledges that while this may not directly contravene existing UCI Regulations, it raises a significant issue concernš¹ing the current and wider trend in time trial helmet design, which focuses more on performance than the primary function of a helmet, namely to ensure the sašŗfety of the wearer in the event of a fall.
"In view of the evolution of these situations as well as other problems encountered in recent years, in relation to the requirement for commercź¦ial availability, the ban on non-essential componentš¦¹s and the shape and size of time trial helmets, the UCI will undertake a review of its rules on the design and use of helmets in competition.
"By doing so, it wishes to ensure that they set a clear framework that is consistent with the objectivāes targeted. Any modification to these rules wilāl be communicated rapidly after its adoption by the competent UCI bodies."

Josh is Associate Editor of Cyclingnews – leading our content on theąµ² best bikes, kit and the latest breaking tech stories from the pro peloton. He has been wiį¦th us since the summer of 2019 and throughout that time he's covered everything from buyer's guides and deals to the latest tech news and reviews.
On the bike, Josh has been riding and racing for over 15 years. He started out racing cross country in his teens back when 26-inch wheels and triple chainsets were still mainstream, but he found favour in road racing in his early 20s, racing at a local and national level for Somerset-based Team Tor 2000. These days šhe rides indoors for convenience and fitness, and outdoors for fun on road, gravel, 'cross and cross-country bikes, the latter usually with his two dogs in tow.