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Fox Racing Speedframe Pro Defy is a bicycle helmet designed with performance and comfort in mind. Thanks to the MIPS Air Node system and BOA Fit adjustment, it offers precise fitting. Ventilation, Fidlock buckle, and an adjustable visor compatible with glasses provide comfort and functionality.

Basic data

Brand Fox Racing
Country of origin of the brand USA
Sport Bicycles
Gender Male, Woman
Season Year-round
Leading colour White
Model/product code Speedframe Pro Defy 33512_052
Code 2000153123

Product details

Fastening type Fidlock® SNAP
Adjustment system BOA®
Shell In-Mold
Lining Ionic+
Mips Yes
Ventilation Yes
Technologies Varizorb EPS, BOA® Fit System, Ionic+®, Fidlock®, MIPS Air Node, In-Mould
Weight 400 g (M)

Additional information

Canopy Yes
Insect netting No
Lamp No

Warnings and producer's data

Standards, certificates CE/EN 1078

Fox Racing Speedframe Pro Defy pewter bike helmet (33512)

The Fox Racing Speedframe Pro Defy pewter bike helmet is a technologically advanced product for demanding cyclists, combining innovative solutions with high-quality craftsmanship.

Ventilation and Protection

The ventilation of the Fox Racing Speedframe Pro Defy pewter bike helmet is one of its key features. Thanks to an effective ventilation system, the user is ensured thermal comfort even during intense rides. The shell, made using In-Mold technology, provides lightness and durability, which is crucial for head protection in case of falls. The helmet meets European CE safety standards, confirming its effectiveness in protecting the user.

Adjustment and Safety Systems

The BOA® Fit System allows precise adjustment of the helmet to the head, providing not only comfort but also increased safety. The helmet is equipped with MIPS Air Node technology, which further enhances protection against rotational impacts. The Fidlock® SNAP buckle is an innovative solution that enables quick and easy removal and fastening of the helmet with one hand, which is extremely useful while riding.

Materials and Technologies

The Ionic+ lining is another feature that distinguishes the Fox Racing Speedframe Pro Defy pewter helmet. This material ensures wearing comfort and has antibacterial properties, which is important from a hygiene perspective. The use of Varizorb EPS technology allows for even distribution of impact force, increasing head protection. These advanced technologies provide the highest level of safety and comfort during riding.

Functionality and Additional Features

The helmet has a visor that protects against the sun and small obstacles on the trail. The helmet weighs only 400 g for size M, making it lightweight and almost unnoticeable during prolonged use. The Fox Racing brand, known for high-quality products, guarantees the helmet’s reliability and durability.

Varizorb EPS
Varizorb EPS foam has two densities and provides increased head protection by dispersing the force of impact over a larger area.
BOA® Fit System
Fitting system, consisting of a strong line, hooks and an adjustable knob. It guarantees a stable and comfortable fit of the product to the shape of the body. The user has the possibility of very precise adjustment.
Ionic+®
An innovative technology that relies on the release of silver ions from the fabric fibres. The system helps to eliminate microorganisms from the surface of the product.
Fidlock®
Magnetic locking systems, characterised by simplicity of use and durability. Modular technology provides the user with a multitude of fastening options.
MIPS Air Node
MIPS Air Node technology is an advanced system integrated into the helmet for optimum protection at key moments.
In-Mould
In-mold is a manufacturing method in which the outer shell of the helmet is permanently bonded to a layer of inner protective foam during moulding. This makes the helmet lighter, more durable and better absorbs impacts. The process also provides an aesthetically pleasing finish and increased structural durability.
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Fox Racing Speedframe Pro Defy pewter bike helmet

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    Size S M L
    Head circumference (cm) 51-55 55-59 59-63

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