Giro Aries Spherical MIPS Helmet - Matte Black Size:M 1/8” set screws are preinstalled

1/8” set screws are preinstalled in the housing

REAR DERAILLEUR :: Shimano Deore

TRP rotors [F]203mm

Group: 105 Di2 R7100

Giro Aries Spherical MIPS Helmet - Matte Black Size:M 1/8” set screws are preinstalledA 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, Giro's 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