WALGUN Ultralight Aero MTB & Road Cycling Helmet – 20+ Vents CE Certified

Your Helmet Is Heavier Than It Needs to Be — and Your Climbing Is Paying the Price

Weight is the enemy of climbing performance. Every gram you carry up a gradient costs you energy — energy that could be going into the pedals, into your pace, into the gap between you and the rider ahead. Most cyclists obsess over frame weight, wheel weight, and component weight, and then put on a helmet that adds 350, 400, or even 450 grams to their head. At that point, the weight savings elsewhere become almost irrelevant.

The WALGUN Ultralight Aero Cycling Helmet solves this problem directly. At approximately 260g, it sits firmly in the ultralight category — light enough to make a genuine difference on long climbs, light enough to forget you are wearing it on extended rides, and light enough to justify the weight savings you have made everywhere else in your build.

The Problem with Heavy Helmets

A heavy helmet does more than slow you down on climbs. It shifts your centre of gravity upward, increasing the muscular effort required to hold your head in an aerodynamic position. Over the course of a long ride, this creates neck and shoulder fatigue that compounds with every kilometre. Riders who switch from a heavy helmet to an ultralight alternative consistently report not just improved climbing performance, but reduced fatigue on long rides — because the muscles that were working to support the helmet's weight are now free to focus on the effort of riding.

At 260g, this helmet removes that burden entirely. The integrally-moulded EPS construction achieves this low weight without compromising the structural integrity or impact protection that safety standards require.

20+ Air Vents — Maximum Ventilation for Maximum Performance

With more than 20 air vents, this helmet delivers exceptional ventilation that keeps your head cool even in hot conditions and at high intensities. The ventilation channels are positioned to draw cool air in at the front of the helmet and exhaust warm air at the rear, creating a continuous airflow across the head that prevents the heat build-up that causes fatigue and reduces power output.

Good ventilation is not just about comfort — it is about performance. Overheating causes a measurable reduction in power output and increases the perception of effort, making every kilometre feel harder than it should. A well-ventilated helmet keeps your core temperature lower, your power output higher, and your perceived effort more manageable. With 20+ vents, this helmet is among the most ventilated in its class.

Integrally-Moulded EPS — Structural Integrity at Minimal Weight

The integrally-moulded construction bonds the outer shell and inner EPS foam liner into a single unified structure during the manufacturing process. This eliminates the bond line between shell and liner that can be a structural weak point in conventionally constructed helmets, and it allows the manufacturer to achieve a lower overall weight without reducing the thickness of the protective foam layer.

EPS (Expanded Polystyrene) is the impact-absorbing material of choice for high-performance cycling helmets. In the event of an impact, it compresses and deforms in a controlled way, absorbing and distributing the impact energy before it reaches the skull. The material is proven across decades of cycling helmet development and remains the gold standard for lightweight impact protection.

CE Certified — Safety You Can Trust

The CE certification confirms that this helmet has been independently tested and meets the European safety standards for cycling helmets. For any rider who takes their safety seriously, the CE mark is the assurance that the protection this helmet provides is real and verified — not just claimed by the manufacturer.

Versatile — Road, MTB, and Everything Between

The aerodynamic profile and ultralight construction make this helmet equally at home on a road bike, a mountain bike, or a gravel setup. Whether you are racing crits, grinding out long road miles, or tackling technical MTB trails, this helmet delivers the protection, ventilation, and weight savings that serious riders demand.

AliExpress Standard Sizing Guide (Cycling Helmets)

• S/M: Head circumference 54–57 cm
• L/XL: Head circumference 57–61 cm

Measure at the widest point of your head, approximately 2.5 cm above the eyebrows. If between sizes, size up for a more comfortable fit.

Specifications

Brand: WALGUN
Model: Italy Bull Cycling Helmet
Material: EPS (Expanded Polystyrene)
Construction: Integrally-Moulded
Certification: CE
Weight: Approx. 260g
Air Vents: >20
Type: Aero Road / MTB
Gender: Unisex Adults
High-Concern Chemicals: None
Origin: Mainland China