Caberg Duke X Motorcycle Helmet Pinlock Insert If you're fed up of having a steamed up visor, you're not alone! Tackle the problem head on with the Caberg Duke X motorcycle helmet Pinlock visor insert*. Compatible with the Duke X Caberg helmet shell and its graphics. Designed to actively combat your motorcycle helmet visor from steaming up and allow the rider maximum visibility and safety. Simple to apply. Pinlock Insert Compatibility: Caberg Duke X Plain motorcycle helmet. Caberg Duke X Tour motorcycle helmet. *Helmet visors are available separately. Do not allow the insert to get wet, even after application as this will reduce the performance of the insert.