Yumaj YM-01 Aero TT Triathlon Helmet with Goggles – CE Certified Road & MTB All-Season

Four Seasons of Racing Demand a Helmet That Performs in All of Them

Most cycling helmets are designed with one season in mind. Summer helmets prioritise ventilation. Winter helmets prioritise warmth. Aero helmets prioritise speed. And the rider who trains and races year-round ends up with a collection of helmets for different conditions — each one optimised for a narrow set of circumstances and inadequate for the rest.

The Yumaj YM-01 Aero TT Triathlon Helmet with Goggles is designed for the rider who wants one helmet that performs across all four seasons, all disciplines, and all conditions. CE certified, constructed from EPS + PC for maximum protection at minimal weight, and equipped with an integrated goggle system that eliminates the need for separate eyewear, this is the helmet that covers every scenario from spring road races to autumn MTB trails to winter training rides.

All-Season Performance — Spring, Summer, Autumn, and Winter

The YM-01 is explicitly designed for year-round use. The ventilation system — with fewer than 8 vents in a configuration that prioritises aerodynamic consistency over maximum airflow — provides enough cooling for summer riding without the heat loss that makes a highly ventilated helmet uncomfortable in cooler conditions. The aerodynamic shell profile reduces drag at any temperature. And the integrated goggle system provides eye protection against wind, rain, and UV regardless of the season.

For the rider who trains through winter and races through summer, this is the helmet that eliminates the need to switch between seasonal alternatives. One helmet, four seasons, consistent performance.

Integrated Goggle System — Complete Eye Protection, Zero Complexity

The integrated goggle system is the feature that makes this helmet a complete racing system rather than just a helmet. By incorporating the goggle directly into the helmet design, it eliminates the gap between helmet and eyewear that creates turbulence and drag in standard helmet-and-glasses combinations. It also eliminates the complexity of managing two separate pieces of equipment — the glasses that fog up, the frames that don’t fit under the helmet, the lenses that scratch in the kit bag.

With the YM-01, you put on the helmet and the eye protection is already there. Integrated, aerodynamic, and ready for whatever the ride demands.

EPS + PC Construction — Maximum Protection, Minimum Weight

The combination of EPS (Expanded Polystyrene) and PC (Polycarbonate) in the YM-01’s construction delivers the best of both materials. EPS provides the primary impact absorption — the foam that compresses and deforms in a controlled way during an impact, absorbing and distributing energy before it reaches the skull. PC provides the outer shell — a harder, more abrasion-resistant material that protects the EPS foam from surface damage and provides the smooth, aerodynamic exterior surface.

The thickened EPS construction provides enhanced impact protection compared to standard-thickness alternatives. At 355g, the weight reflects the additional protection that the thickened construction provides — a worthwhile trade-off for riders who prioritise safety alongside performance.

CE Certified — Safety Verified for All Disciplines

The CE certification confirms that this helmet has been independently tested and meets European safety standards for cycling helmets. Whether you are racing a triathlon, training on the road, or riding technical MTB trails, the CE mark is the assurance that the protection this helmet provides is real, verified, and compliant with the standards that European regulators have determined are necessary to protect cyclists in the event of an impact.

Available in Four Colourways

The YM-01 is available in White, Grey, Blue, and Ink — four colourways that cover the full range of kit combinations and personal preferences, from clean and minimal to bold and distinctive.

AliExpress Standard Sizing Guide (Cycling Helmets)

• One Size: Head circumference 55–61 cm

Measure at the widest point of your head, approximately 2.5 cm above the eyebrows.

Specifications

Brand: Yumaj
Model: YM-01
Material: EPS + PC (High-Density, Ultralight)
Construction: Integrally-Moulded
Certification: CE
Weight: 355g
Air Vents: <8
Size: 55–61 cm (One Size)
Packing: With Goggles
Colours: White, Grey, Blue, Ink
Applicable Season: Spring, Summer, Autumn, Winter
Use: Road Bike, Mountain Bike, Triathlon
Gender: Unisex
High-Concern Chemicals: None
Origin: Mainland China