When should I replace my enduro helmet?

Replace your helmet after any crash where your head contacts the ground, even if no damage is visible—EPS foam compresses on impact and does not recover. Replace every 3-5 years even without crashes, as UV exposure, sweat, and temperature cycling degrade the shell and foam over time. Replace immediately if you notice cracks in the shell, separation at the edges, loose fitting components, or if the retention system no longer holds securely. The cost of replacement is always less than the cost of inadequate protection.