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Kask Helmets

Kask helmets are premium cycling helmets known for their exceptional safety, comfort and lightweight designs.

Engineered primarily for road cyclists and made in Italy, Kask helmets combine advanced technology with aerodynamic design and impact protection systems such as WG11 testing.

Their ergonomic fit, excellent ventilation and adjustable retention systems help deliver comfort on long rides, while streamlined designs reduce drag for improved performance.

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Popular Kask Helmets

Kask helmets are designed for riders who want lightweight, safety and all-day comfort.

Kask builds their road bike helmets with a focus on aerodynamics, ventilation and the perfect fit.

Therefore, Kask has become one of the most recognised premium helmet brands among road cyclists worldwide.

Popular models are the Protone, Valegro and Mojito. Each offers slightly different benefits depending on riding style and priorities.

Kask helmets are primarily designed for road cycling. And if this doesn't quite feel like the right fit, explore our full range of bike helmets. We've got more road, mountain bike, commuter and recreational helmet options.

KASK Protone Icon vs Valegro vs Mojito

  • Kask Protone road bike helmet in white

    KASK Protone Icon

    The Kask Protone is designed as an all-round performance road helmet that prioritises aerodynamics. It remains one of the most popular choices for riders seeking speed without compromising comfort.

    The new Protone Icon is a balance of aerodynamics, ventilation and weight. The new version improves upon the original with updated safety tech, a stronger internal frame and a more refined design language.

    Weight for a medium is 230 grams. And the Protone Icon has 14 air vents; 8 large intake vents and 6 exhaust vents.

  • Kask Valegro road bike helmet in white/black

    KASK Valegro

    Kask's Valegro is the performance ultra-lightweight, maximum airflow road helmet. It's been co-developed with one of the most successful road cycling teams in history - Team INEOS Grenadiers.

    It's built for the hottest days and tough climbs where you need the most cooling.

    Weight is around 200 grams. And the Valegro has 37 air vents, almost double that of the Protone Icon.

  • KASK Mojito³

    A lot of our customers love the Kask Mojito.

    It's well priced for an Italian made road bike helmet. More importantly, it has more head coverage. It's lower on the back and sides.

    And the fitting system is once of the best. It has this hinged bracket that allows the bracket to sit comfortable on any part of the back of the head.

    The latest Mojito³ uses 17 air vents to cool your head. And weight comes in at 230 grams.

Kask WG11 Safety Technology

Kask helmets featuring the WG11 have passed Kask’s advanced rotational impact testing protocol. This is designed to help reduce the risk of brain injuries during angled or oblique crashes.

Standard helmet testing focuses on direct impacts. WG11 testing evaluates how a helmet manages rotational forces that can occur during real-world cycling accidents.

What Is The Kask WG11 Protocol?

The WG11 name originates from the European Committee for Standardization (CEN) Working Group 11. This focuses on developing modern rotational impact safety standards for helmets.

To meet the WG11 protocol, helmets undergo laboratory testing involving oblique impacts at a 45-degree angle with impact speeds of 6 metres per second. The testing process uses a realistic headform with a lower coefficient of friction designed to better replicate the movement of the human scalp during impacts.

Brain Injury Criteria (BrIC)

To pass the WG11 protocol, a helmet must achieve a Brain Injury Criteria (BrIC) value below 0.68.

Kask states that its tested helmets significantly exceed this requirement. With many scoring below 0.39 to help minimise rotational forces transferred to the brain during impacts.

WG11 vs MIPS

MIPS helmets, which use a separate low-friction liner inside the helmet. Kask’s WG11 approach focuses on the helmet’s overall shape, internal padding and construction materials to manage rotational forces without requiring an additional internal liner.

Both systems are designed to help reduce rotational energy during impacts, but they achieve this through different design approaches.

Which Kask Helmet Is Best?

Choosing the best Kask helmet depends on riding style, ventilation preferences and the balance between aerodynamic performance and lightweight comfort.

Riders training through warmer Australian conditions often prioritise airflow and lower weight, while racers and fast bunch riders may prefer helmets with stronger aerodynamic performance.

Riding Style Recommended Helmet Why Riders Choose It
Racing & Fast Road Riding Kask Protone
  • Aerodynamic road performance
  • Excellent ventilation and airflow
  • Lightweight construction
  • Popular for racing and fast bunch rides
Climbing & Hot Conditions Kask Valegro
  • Extremely lightweight feel
  • Maximum ventilation and cooling
  • Designed for warm-weather riding
  • Ideal for long climbing efforts
Everyday Road Riding Kask Mojito
  • Versatile all-round comfort
  • Balanced road riding performance
  • Suitable for training rides
  • Comfort-focused fit system
Long Endurance Rides Kask Mojito
  • Comfort-focused fit for longer rides
  • Balanced ventilation and support
  • Designed for consistent everyday comfort
  • Well suited to training and endurance riding
Ventilation-Focused Riding Kask Valegro
  • Highly ventilated shell design
  • Improved airflow during hard efforts
  • Reduced heat build-up
  • Excellent comfort in warmer conditions

Complete Your Road Riding Setup

A premium road helmet is often only one part of a riding setup.

Explore our collections:

  • Looking for additional options? Browse our bike helmets collection for road, mountain bike and recreational helmet styles.
  • View road bike helmets for more performance-focused road cycling helmets.
  • Explore cycling glasses for improved visibility and eye protection.
  • Browse road cycling gloves for better hand comfort on longer rides.
  • Complete your setup with road cycling shoes designed for efficient power transfer.

KASK Helmet FAQs

What country are Kask helmets from?

All Kask helmets are produced in Italy.

The build quality, fit and safety are exceptional and typical of true Italian design.

Should my Kask helmet be replaced after a crash (even a small one)?

Yes.

That's because internal damage to the helmet will be unseen and can therefore compromise safety.

Plus, Kask Australia offers a crash replacement discount.

How often should I replace me Kask helmet?

A helmet’s lifespan is affected by temperature changes, sun exposure, and usage.

Regularly check for damage like cracks, warping, or discolouration.

Even without visible wear, replace it every 3 years as materials degrade over time.

What certifications do Kask helmets have?
  • CE EN 1078
  • CPSC 1203
  • AS/NZS 2063


For Australia it's the last helmet standard that's the most appropriate.

Do Kask helmets use MIPS?

Most Kask helmets do not use a traditional MIPS liner.

Instead, Kask focuses on helmet shape, internal padding and construction materials to manage rotational forces through its WG11-tested design approach.

What does WG11 mean on a Kask helmet?

WG11 is Kask’s rotational impact testing protocol designed to evaluate how helmets manage rotational forces during angled impacts.

Helmets carrying the WG11 designation have passed Kask’s advanced laboratory testing standards.

What is WG11 in Kask helmets?

Kask's WG11 is a rotational impact testing protocol designed to assess a helmet’s ability to protect against rotational forces during crashes.

Unlike other rotational impact tests that use standard methodologies, WG11 focuses on real-world accident scenarios, using scientific, unbiased testing methods to ensure maximum rider safety.

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