Sorry, this product is no longer available!
Kask Infinity Aero Road Cycling Helmet is no longer available at Merlin Cycles. However you may find an alternative or updated product below.
Kask Infinity Aero Road Cycling Helmet
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Kask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling HelmetKask Infinity Aero Road Cycling Helmet

This item was discontinued 23rd November 2021.

If you require help finding an alternative to this product please contact customer services.

Kask Infinity Aero Road Cycling Helmet

The Kask Infinity Aero Road helmet is the first to feature adjustable vents; this clever approach to helmet design gives you a versatile aero helmet which adjusts to provide maximum aero performance with the vents closed and optimum ventilation with the vents open – perfect for warmer days and long climbs.  

Developed in partnership with the Team Sky professional cycling team, Kask’s design brief was to create an aero helmet that equaled their fully closed helmets in terms of aerodynamic performance but also offered the right level of ventilation for long hot days racing in the peloton. With the final design informed by feedback from Pro cyclists Kask produced an easy to open venting system – simply slide open up for temperature management on climbs and close fully to meet the aerodynamic demands of high-speed racing. 



The Kask Infinity Aero Road helmet features 3D DRY padding inside the helmet for enhanced comfort and performance, an eco-leather chinstrap which is anallergic & washable and helps to avoid irritation of the skin, a rubberised Micro Dial adjuster on the back of the helmet and a floating cradle with internal gel pads for optimum comfort. All Coolmax inner padding has been treated with an antibacterial and antimicrobial process to help keep the helmet fresh and odour free. High visibility stickers on the rear of the Infinity aero helmet provide extra rider-safety in poor conditions.



  • Aero Control – adjustable vents
  • 3D DRY padding - removable & washable Coolmax® inner padding
  • ECO Chinstrap - anallergic & washable
  • Internal shock frame
  • Easy-adjust rubberised micro-dail
  • Floating cradle with gel pads
  • High visibility stickers                          


Sizing and Fit

  • Medium: 52-58cm / 20.5”- 22.8”
  • Large: 59-62 cm / 23.2” - 24.5”



  • Medium - 310 grams
  • Large - 340 grams


Safety Information

CE EN 1078 These Helmets are certified with a European CE EN1078 standard. This is a European standard and although the helmet is perfectly safe to use, specific countries may have their own certification which is legally required if you intend to wear the helmet recreationally or in a competitive racing environment. If you are unsure, please check your specific country requirements and check with the manufacturer to see if the helmet has received any additional certification.

Mr Woodruff Fit nice, with neat quality straps, I like it.
Mark Great looking and really comfortable helmet.
Bryan Ordered the helmet for the sale price and would have been happy to buy it full price. The best helmet I have used for fit and more importantly for coolness. Haven’t had a really hot ride, but my head is noticeably less sweaty.
Dr Downie Can definitely feel the air flow change when opening/closing the aero-vent. Looks and feels a bit klunky, but actually not too heavy. Comfy strapping and adjustments.
Ray Good looking helmet with vent at front not wore it in vengeance yet but fits good and looks good.
Mr Giles Kask make excellent helmets and I needed to replace mine with a helmet with flexibility. With the adjustable vent this gives me what I wanted. Quality .
Keith The Kask helmet is a vast improvement on my summer helmet. Keeps your head dry and warm, with the vent closed in colder condition s , easy to open the vent if getting warm, while riding. Great comfort so much adjustment to get it fitting just right. Not heavy can feel the more aero on your head less wind noise and drag. 👍👍
Mr Phelan Light and very comfortable, snug fit but in a good way
Mr Phipps I purchased this helmet as a replacement for my old worn out traditional type helmet. Having looked at various helmets I preferred the sleek design without the look of a time trial helmet. I also like the option of closing the vents which will help during colder conditions. I'm really pleased with this helmet. The comfort, design and fit is superb.
Rjparry Really love this lid. Very comfortable, and the slide to regulate airflow is much more effective than I thought it would be. Also, as helmets go it looks great!
Oddsnowman84 Excellent helmet, comfortable and looks good. It can get warm with the vent shut but as soon as you open it up you head cools down significantly. The strap is a little stiff but so far so good.
kevin This helmet saved my life on January the 5th 2020, have brought again can't praise it enough.
PlodderPaul Looks and feels like a quality helmet. The various adjustments allow me to get a secure & comfortable fit onto my head, Bought this mainly for the ventilation flap to keep my head warm and dry during Winter. This feature works well and it’s easy to open the flap mid ride if my head starts to heat up. Bit heavier than my Giro Synthe but thats the only minor point. Fast delivery by Merlin.
Mr Spearman-Oxx Very pleased with the Infinity as it’s light, comfortable and vent system is very effective.
Mr Davies Excellent product offering aero features. It's all about marginal gains and this helps
Charlie H Fantastic helmet very comfortable with plenty of adjustments. Lid closed ideal for cooler weather
Joel I love this helmet. Snug fit. Top quality material. Really really reduces wind drag. I ordered it before they put the discount on all Kask helmets, anyhow it is still worth the money.
Mr Harrison Very pleased with these helmets. One for myself and one for my wife both a very good fit and comfortable. So light it hardly seems you are wearing it. Excellent service from Merlin.
M. Raven Feels very comfortable and well ventilated, even with the vents closed. I've owned both the Giro Air Attack and Specialized Evade. The Kask Infinity is definitely much better ventilated than both, and feels nearly as good as the Kask Protone. The only slight negative is perhaps the weight.