Kask Zenith Metal Mesh Visor Hydration Large Ring Dimensions:Internal Diameter (ID):

Large Ring Dimensions:Internal Diameter (ID): 45MMExternal Diameter (ED): 70MMProof Tested: 16KNMaterial: ALUMINIUMMinimum Break Strength: 25KNFinish: Anodised Red

The RP051 from ISC is a cast aluminum block made from high tech aluminum alloy

which guarantee that the helmet fits securely on the head

swivelling termination connector designed to load in the strongest orientation

The Big-Boss has an MBS of 7

Kask Zenith Metal Mesh Visor Hydration Large Ring Dimensions:Internal Diameter (ID):A full face metal mesh visor to suit the Kask Zenith helmet. *Note this requires the Zenith visor carrier and visor adaptors, sold separately.