Bell Full-10 Spherical

Yes, the Full-10 Spherical is certified to both the CPSC 1203 bicycle standard and the ASTM F1952 standard specific to downhill mountain biking. The ASTM F1952 certification requires the helmet to withstand higher impact energies than standard bicycle helmet tests, reflecting the greater speeds and harder crashes typical of downhill racing.

Spherical technology was co-developed by Bell and MIPS and uses a ball-and-socket design where the outer EPS shell can rotate relative to the inner shell during an angled impact. Unlike standard MIPS, which uses a thin low-friction plastic liner between the shell and foam, Spherical integrates the rotational energy management directly into the dual-density foam layers.

No, the Full-10 Spherical is a dedicated full-face helmet with a permanently fixed chin bar, unlike convertible models such as the Bell Super Air R. It is designed exclusively for downhill and aggressive enduro riding where maximum face and jaw protection is needed at all times.

The EMS incorporates a fluid-filled layer that works alongside the dual-density EPS foam to absorb and dissipate impact energy across a wider area of the head. The fluid behaves in a way that helps manage both low-energy and high-energy impacts, complementing the Spherical system's rotational force reduction during angled crashes.