What causes internal helmet degradation and how to spot it?

In-depth explanation

Internal degradation occurs from UV exposure, sweat, oils, and repeated compression cycles. Signs include compressed or flaky EPS, loose stitching, odours that won’t come out, and liners that no longer sit snugly. Regular inspections, especially of the EPS under the liner and around vents, can reveal early problems. Replace the helmet if internal parts feel deteriorated or the fit has changed significantly.

Key takeaways

• Internal degradation occurs from UV exposure, sweat, oils, and repeated compression cycles.
• Signs include compressed or flaky EPS, loose stitching, odours that won’t come out, and liners that no longer sit snugly.
• Regular inspections, especially of the EPS under the liner and around vents, can reveal early problems.

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