Giro Helios Spherical Helmet - Matte Purple Haze Size:M and which freehub type is

and which freehub type is needed

allowing the spring rate to be reduced

Imagine yourself confidently breaking away from the pack—during a climb

in a range sufficient to cover every route requirement

Giro Helios Spherical Helmet - Matte Purple Haze Size:M and which freehub type isThe heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball and socket design powered by Mips, the market leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and