Photochromic (Clear/Smoke) Face Shield Helmet Visor Replacement for K1 S, K3 SV, K5 S Motorcycle Full HelmetsOnline Sale

Aftermarket helmet visor for K1 S / K3 SV/K-5 S helmets.

Photochromic shields will turn dark in sunlight and become clear(or almost entirely clear) again when indoors. This is the result of chemical responses to the presence (and absence) of ultraviolet light.

Photochromic shields are known to darken more quickly than they lighten and the speed it takes is slightly temperature dependent too. If it’s a really bright and sunny day, they’ll typically reach max darkness in about 20s. Full activation will be in 2 minutes.

UV Protection: Blocks 99% of UVA and UVB rays. Impact resistant.

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Photochromic performance is influenced by temperature, UV exposure and riding posture. PLEASE NOTE!

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