All safety certified helmets are comprised of a internal shell generally made of polystyrene material covered with a polycarbonate or ABF outer shell. The durable outer shell distributes the impact pressure across a larger area, avoiding a localized blow to the rider’s skull. The polystyrene inner shell offers impact absorption. The polystyrene is made up of microscopic air bubbles. Upon impact, the bubbles burst, compromising the integrity of the protection values. After a fall, it is imperative that the helmet be checked for integrity. Most brands will offer a replacement policy.
Properly fitting helmets are critical. Allowing three-quarters of an inch above the eyebrow, will protect the frontal lobe.
The circumference of the helmet must follow the contour and contact the skull. If there are asymmetries of the head, shims or blocks can be place using double faced tape to secure the fit. When placed correctly on the head, the helmet should not shift or move. To test the fit, tap gently on the rim and check for liberal movement.
Understand that the head will swell when contained in hot, humid weather. Ventilation slots are available in the Samshield, Charles Owen GR8, One K, Ovation and Troxel. If you have brand not listed here, or are in the market for a new Helmet, please note the ventilation properties.
Please do not allow the helmet to drop, or roll around, or leave in the hot trunk of your car, as you may damage the polystyrene.
Helmets do have expiration dates, please check to ensure they are ASTM approved with current dating.