Giro Aries Spherical Helmet - Matte Black/Frequency Orange Size:M you need material that provides

you need material that provides you with precision

6MM) Including 2 Valves

Dimensions (inner Ø x outer Ø x height): 17x30x7 mm

Designed for the PRO Vibe Aero handlebar/stem combination

Perfect tire-fit

Giro Aries Spherical Helmet - Matte Black/Frequency Orange Size:M you need material that providesA helmet that feels like it isn't there: the all new Aries Spherical is like nothing before. Its sleeker form and lighter weight (only 270 grams in size medium, CE certification), deliver sensational comfort and cooling power. Spherical Technology, our ball and socket design powered by Mips, adds protection by redirecting energy away from the brain in certain impacts, and Progressive Layering with dual densities of Nanobead EPS foam adds more