Ownership

Inspect, clean and replace a bicycle helmet

Care instructions vary by model, so the first reference is always the exact helmet's manual and label. Do not assume that a cleaner, replacement pad or repair method is safe because it worked on another brand.

Inspect the parts that keep the helmet in position

Before riding, check the shell, straps, buckle, fit system, lining and pads for cracks, loose parts, wear or missing components. The CPSC guidance identifies visible damage, worn straps and missing pads or parts as reasons to replace a helmet and cautions that some impact damage may not be visible.

Treat impact history seriously

Bicycle helmets are designed around absorbing crash energy, and a damaged liner may not look obviously damaged from the outside. Follow the helmet's warnings after a crash or significant impact; do not return it to use because the outer shell appears intact. If the correct next step is unclear, ask the manufacturer. For a secondhand offer, an unknown impact history is a meaningful drawback that a photograph cannot resolve.

Clean only as directed

Use the cleaning methods and replacement parts named by the helmet manufacturer. CPSC notes that common cleaners can damage helmet materials without visible signs. Avoid solvents, adhesives, stickers or modifications unless the manual says they are allowed, and do not add padding to change the fit.

Recheck the exact version

Keep the model identification and care guidance with the helmet. When replacing a pad, buckle or light, verify that the part is made for the exact model and edition. A compatible-looking accessory is not proof of a safe fit or an approved repair.