- Shoei X-Fourteen Helmet Lower Air Intake. Vent is held on with three screws which come with the new vent.
**FIVE-YEAR WARRANTY** Your SHOEI helmet is covered under warranty for five years from the purchase date, or seven years from the date of manufacture (whichever comes first). The warranty covers all manufacturing defects. Please note that damage caused by the consumer (i.e. dropping the helmet, etc.) is not covered under warranty.