Both full-face helmets with a polycarbonate shell and those with a fiberglass shell can provide adequate protection, but there are some differences to consider.
Polycarbonate Shell:
- Polycarbonate helmets are typically more affordable than those with a fiberglass shell.
- They are generally lighter in weight, which can provide greater comfort during long rides.
- Polycarbonate shells have good impact resistance and can effectively absorb and distribute energy upon impact.
- However, polycarbonate shells may deform more under severe impact compared to fiberglass, potentially leading to greater damage to the helmet.
Fiberglass Shell:
- Helmets with a fiberglass shell are often considered to be more premium and expensive.
- Fiberglass shells have high strength-to-weight ratios, providing excellent impact resistance while remaining relatively lightweight.
- They are designed to withstand higher impacts without deforming as much as polycarbonate shells.
- Fiberglass shells can also provide better penetration resistance, as the fibers tend to absorb and distribute energy effectively.
It's important to note that the protection provided by a helmet is not solely determined by the shell material. Other factors, such as the helmet's design, construction, fit, and additional safety features like EPS (expanded polystyrene) foam liners, chin bars, and visors, also contribute to overall safety.
Regardless of the shell material, it is crucial to choose a helmet that meets or exceeds safety standards set by organizations such as the Department of Transportation (DOT) or the Snell Memorial Foundation. Look for proper certification labels to ensure the helmet has undergone rigorous testing.
Ultimately, the choice between a polycarbonate or fiberglass shell depends on personal preferences, budget, and the level of protection you seek. Both types of helmets can offer adequate protection if they meet the necessary safety standards and fit properly.