Helmet Preference

[ingobohn_imp]

Yes, 5 years is the usual recommendation. But it depends on many factors like "do your ride 1000 miles in 5 years or 100000?", "is the helmet stored in a dark place or in full sun light?", "is the helmet made out of fiber, or other sort of plastic?" etc.
Nevertheless, I plan to exchange my current helmet (Schuberth C3) with a Schuberth C3 pro in spring next year.