Research and development enjoy a high priority status at CARBULL. The analysis of crash helmets and accidents in day to day life as well as knowledge from continuous testing and laboratory results make each CAIRBULL helmet a product with the highest safety margins.

Carbo wing technology

Air channel technology

To prevent our products from dents and scratches and to ensure longevity, we have supplied our products with an additional downshell.

Inmold technology

Inmold construction

ABS technology

In this production method, the outer shell and core are produced separately from each other and are getting joined in an additional work step.

Carbon or fibreglass

Carbon fibreglass construction



Height adjustment

To ensure optimum fit and best wearing comfort, our products are equipped with an additional height adjustment system besides the regular head circumference adaptation system. Integrated ballpins enab

Full protection

Fullface-helmet for a maximum of safety during downhill rides.

Bug stop

Insect protective net inmolded

Compatibility with glasses

All of our visors have been specially designed for the use by spectacle wearers and enable optimum comfort with effective protection from wind and rain.


Decide on your own whether to use an Insect Protection Net or not. Be on the safe side in any case with our optional insertable insect net.


Life saving visibility: Our innovative REARLIGHT is an essential and easy to use safety upgrade. With a simple “click” you and your kids are ready for a ride in the dark of dawn.

Light weight

CAIRBULL light weight design.

Clean Tex pads

Clean Tex Pads are treated antibacterially and therefore prevent the rise of bacteria within the helmet. As a consequence, longevity and long-lasting hygienic freshness is achieved.

LFS - Light Fit System

Based on the experiences of the past and the results of our research, in which we have worked closely together with our team-riders, we have defined a completely new requirement profile for an adjustm

RLS - Rapid Lock System

Perfect ergonomic fit. Side volume adjustment. Inmolded 360° size adjustment. New optimized lacing system with improved comfort. Easy handling due to integrated strap-divider. Reflective logo-sticker

HCS - Hyper Control System

180° size adjustment, inmolded and adjustable. Easy handling due to integrated strap divider. Reflective logo-sticker included.


Clip buckle


Optimal wearing comfort in the chin area


Waterproof raincover with welded seams for protection against rain, wind and coldness. Optimal visibility through reflectors.


UVP         $ 54


The trendy Castle combines a particularly PC shell with an extremely large number of ventilation openings.

This makes the Castle a perfect everyday helmet for the city due to its optimal ventilation and the outstanding safety.

As a cyclist in the city you have other demands on a helmet than a racing cyclist or mountain biker. A helmet for the city should be practical, comfortable, stylish, modern and above all safe. The youth and adult helmet Castle convinces with great comfort while wearing and can be easily adjusted to your own head size with the finely adjustable adjustment system.


■     Air channel technology

■     Inmold technology

■     Light weight

■     Clean Tex pads

■     LFS - Light Fit System

■     Rearlight

■     Zoom Evo Easy–side to middle slider 

      non-slip adjustment

■     Integrated intake anti-insects net 

■     Chinpad

■     Removable ECO-leather visor


■     In-mold construction

■     Zoom Evo Easy – fine adjustment system with 

      a non-slip adjusting wheel

■     Size adjustment by means of a half ring 

      made from particularly hard-wearing and 

      slightly malleable plastic for optimal 

      stability and form fitting

■     Large, highly mounted and integrated LED 

      tail light with 180° visibility

■     Optimum ventilation for this helmet type with 

      13 air intakes and 5 air outlets

■     Removable and washable padding with 

      maximum wearing comfort

■     Soft straps that are simple to fit thanks to 

      practical strap adjusters

■     Removable ECO-leather visor

■     High visibility due to reflectors

■     Full protection from insects  


     S-M (54-58cm)


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What makes a good racing cycle helmet or time trial helmet? Anyone who is on the move with a racing cycle wants to get from A to B quickly. CAIRBULL helmets combine the requirements for maximum speed with those for safety. We offer extremely light and aerodynamic helmets with weight-reducing in-mold technology and safety-augmenting carbon constructions. To prefent sweating, all our helmets possess an excellent and top-rated ventilation system.