Helios Spherical Road Helmet Size:Small BB/Frame Interface: English

BB/Frame Interface: English

Axle Diameter (mm): 12

bottom-swing

Highly resistant adhesive tape works as a rim tape and airseal

mirrored decals

Helios Spherical Road Helmet Size:Small BB/Frame Interface: EnglishThe heart of the Helios 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 helmets 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 performance.