Zox Alto Custom Hot Rod Half Helmet YCRF_mc_mx_boots Venturi: Engine Intake (Inner Diameter):

Venturi: Engine Intake (Inner Diameter): 24mm

Optional handlebar clamps cover all of the center area that is sized down to one inch

But just because it's rugged doesn't mean this machine is impervious to dents and scratches

Replacement chin strap cover for Alpinestars Supertech M7 helmets

Zox Alto Custom Hot Rod Half Helmet YCRF_mc_mx_boots Venturi: Engine Intake (Inner Diameter):FEATURES AFCS advanced fiberglass composite shell for your safety 3 Shell sizes to ensure a good fit XS S, M L, XL 2XL 2 adjustable front vents 3 snap shorty visor included Ear protector included, ready to recieve communication system Net weight: 900 g (2. 0 lbs) Meets or exceeds DOT FMVSS 218 certified