Pinlock Fog Resistant Lens

[Houtman_imp]

Pinlock advantages:[ul] [li]Prevents visor fogging
[/li][/ul] Pinlock disadvantages:[ul] [li]Easily scratched[/li] [li]Dirt inevitably gets between the Pinlock and the visor[/li] [li]Blurred lights riding at night (Pinlock should be removed)[/li] [li]Cost[/li] [li]Additional fiddle-factor
[/li][/ul]

There are different grades of Pinlock visors , some better than others but yes they probably have to be replaced every year to make certain that they perform perfectly.