Emerald Carbon

Inspired by the intense chemistry of planet creation the Liquid Carbon Emerald is brutally tough. Combined with a high-tech carbon fibre weave this helmet runs fast and light whilst maintaining a natural beauty on the road. 

The gemstone green colour scheme will evoke a sense of envy from other riders as you soar across the horizon. Just don’t let them catch you – who knows what they’ll find.

The AT4.0 full-face motorcycle helmet ticks all the boxes for safety, comfort and style. Composed of multi-layered, multi-density foam, our tailor-made cheek pads intelligently contour around your face for a custom fit.

The AT4.0 headliner has been enhanced with RHEON™ technology that helps reduce impact and rotational forces using reactive polymers for increased energy dissipation. Fully ECE 22.06 certified, the AT4.0 is our safest helmet yet.

The streamline carbon fibre shell features fully adjustable front and top vents for precise temperature control and improved acoustics to reduce turbulence and wind noise.

The AT4.0 is a fully Bluetooth compatible motorcycle helmet when used with the Shockwave Bluetooth audio insert (sold separately). Featuring sound engineering by Harmon Kardon, the Shockwave integrates seamlessly into the AT4.0.

Your AT4.0 can be customised with our range of helmet visors. We offer seven additional coloured visors that can be changed in a matter of seconds with our tool-less thumbscrew mechanism. Your AT4.0 comes as standard with a clear visor installed and a tinted visor included in the box.