When should I replace my full face MTB helmet?

Replace your full face helmet after any crash where your head hits the ground or an object, even if damage isn't visible—the EPS foam compresses on impact and loses its protective capability. Replace it every 3–5 years even without crashes, as UV exposure, sweat, and temperature cycling degrade the foam and shell over time. Replace immediately if you notice any cracks in the shell, loose chin bar attachment points, frayed straps, or if the helmet has been dropped from significant height onto a hard surface. Most manufacturers offer crash replacement programs at 30–50% discount.