We’ve turned the noise down…by 57%*
Our quietest ATLAS ever
* From ATLAS 3.0 vs our leading competitor
What makes a motorcycle helmet noisy?
Several factors come into play with noise generation in a motorcycle helmet:
• Helmet shape
The shape of the helmet is intrinsically linked to its aerodynamics. Poor performance in this field, (flat, abrupt surfaces and protruding features) leads to high turbulence being generated around the shell, heard as wind noise.
• Shell Material
Some materials perform better than others in acting as a barrier to wind noise. Plastics and certain composites (eg. Glass Fibre) are good acoustic insulators, while lightweight composites (eg. Carbon Fibre) are susceptible to structural resonance and can amplify external noises.
• Sealing
A poorly sealed helmet will let more of the external airborne noise into the rider space, creating a greater perception of wind noise and irritating whistling
• Liner design
The internal liner of the helmet is the final barrier to noise transfer to the rider. A poorly constructed and fitting liner will lead to undamped vibration and noise ingress, and fail to prevent unwanted airflow movement around the riders head.
How have we made ATLAS 4.0 quieter?
To make the ATLAS 4.0 motorcycle helmet quieter we have made a few key modifications. For the internals, we have improved the contouring and construction of the liner system specifically around the neck and face, added a padded ‘ear bridge’ on the cheek pad and included a sound dampening insert that can be used in place of the shockwave speaker. This new insert consists of two layers, an acoustic base layer that aids in making the ride quieter, and a top comfort layer for a premium comfort feel. On the exterior we have deleted out features on the shell where possible, making the helmet smoother and more aerodynamically stable, reducing the resulting noisy turbulence.
What noise testing have we put the ATLAS 4.0 through?
The ATLAS 4.0 full-face motorcycle helmet has gone through multiple rounds of extensive testing. From wind tunnel testing at an external engineering facility, for repeatability and consistency, to real-world track testing at a local race circuit. Getting out on track, with thermocouple-laden racing gear, meant we could evaluate the helmet against turbulent wind speed, riding direction variation and bike sound.
Why do you want a quiet helmet?
Quiet is comfortable. A quieter helmet will lead to a much more enjoyable ride, without being distracted by any unwanted, externally generated noise.
