Your current helmet either still protects you or it doesn't. The year on the receipt is a weak signal, to be honest. Fit, crushed foam, and the sticker inside the shell tell you more.
Does the lid you grab every morning still sit level and stay put?
A CPSC-certified bicycle helmet is the U.S. starting point for bikes, e-bikes, and many street scooters you ride in mixed traffic. Independent ratings can raise that floor. They can't save a helmet that slides, pinches, or already took a hit.
Check the helmet you already own
Work through this in order. Stop if a step fails.
- Fit. Sit the helmet level, one to two fingers above your eyebrows. Straps should form a V under each ear, and the buckle should be snug without choking you. A helmet that walks around when you nod is already failing. It's failing even if the foam still looks new.
- Damage. Use bright light on the shell, liner, and webbing. Cracks, dents, crushed foam, a broken buckle, or stretched straps are enough. After a crash that loaded the helmet, retire it even if the outside looks almost normal. The liner is designed to crush once.
- Label and age. Find a CPSC mark for U.S. use. EN 1078 shows up on many European cyclist and scooter helmets, and it is not a substitute for CPSC if you need the U.S. product standard. There is no universal replacement clock. Follow the maker's printed service life when they give one. Heat, UV, and worn retention parts age a helmet even without a crash.
Skip a used helmet unless you know it never took an impact. Listing photos hide crushed foam.
Replace it now if fit is wrong, damage is visible, or the certification sticker is missing.
What the CPSC mark actually tests
You're shopping for a label, not repeating a lab drop in your garage.
CPSC's bicycle helmet FAQ puts the flat-anvil impact at about 20 ft/sec, which usually means the helmet drops at least 6.5 feet in the lab. The hemispherical or curbstone hit is slower, about 16 ft/sec. 16 CFR Part 1203 also requires makers to condition samples in ambient, hot, cold, and water-immersion environments before those hits. You don't rerun any of that at home.
| Mark | Role for a U.S. rider | Limit |
|---|---|---|
| CPSC | Legal bicycle-helmet floor, including many e-bike and scooter uses | Does not rank concussion risk helmet to helmet |
| Virginia Tech STAR | Independent multi-impact score | Does not replace CPSC or prove the helmet fits you |
| EN 1078 | Common European cyclist and scooter standard | Not a CPSC substitute in the United States |
| NTA 8776 | Extra coverage approach for faster e-bikes | Not a nationwide U.S. mandate |
Thing is, this testing is a pass-fail floor, not a ranking. It won't tell you which certified helmet did better against oblique hits. Local adult helmet rules still differ by city and state. Confirm those separately.
Ratings after the legal floor
Virginia Tech's Helmet Lab runs a separate protocol with many impacts and publishes a 1 to 5 STAR rating tied to estimated concussion risk. Use 4 or 5 stars as a filter.
Look up models in the Virginia Tech Helmet Lab database. Absence from the list is not a fail. It only means that lab has not published a score for that shell yet.
A 5-star helmet that sits high on your forehead is still the wrong helmet. Fit stays first.
Faster micromobility and extras worth paying for
E-bikes and scooters often carry more speed than a casual pedal commute. Crash energy climbs with that speed. The United States does not hand you a separate federal helmet category for every e-bike class. You still get to be pickier about coverage and rotational management.
Rotational systems such as MIPS add a low-friction layer so the shell can shift a little relative to the head in an oblique impact. Results stay model-specific in those tests. You still have to size and strap the helmet correctly.
If you ride a faster e-bike on mixed streets, and you already know you hold higher assisted speeds on flats, and you have ever tried a compact scooter helmet that barely covers the back of the skull, coverage is the comparison that actually changes what you bring home, even if two lids cost the same and both say CPSC on the sticker.
Helmets built around NTA 8776 put extra emphasis on that coverage, which matters more when you spend real time at assisted speeds. The hang-tag price is a noisy signal. Two CPSC helmets can land far apart in independent testing. Spend on rating, coverage, and a shape you'll wear.
Try it on like you mean to keep it
An expensive rating on a helmet that moves is wasted foam. Walk in with a shortlist and fasten the straps before you pick a color.
Snap your head left, then right. The helmet should not walk on your scalp. You want about one finger under the chin strap, with the side straps meeting just under the ear in a V. Check the V in a mirror.
Leave it on for about 20 minutes. Pressure points show up after the polite first minute.
Use the rear dial as designed. Skip thick hats, aftermarket pads, and camera mounts unless the manufacturer says those parts are compatible. Ask someone in the shop to watch you put it on. They catch the too-far-back habit constantly.
Turns out plenty of riders size up because a correct helmet feels dramatic for thirty seconds under the shop lights. Give the right size a few minutes. Pads compress.
Common follow-up questions
When do I replace a helmet that looks fine? Replace it after any crash that loaded the liner. Follow the maker's service life if they printed one, and retire stretched straps or a fit that no longer sits level.
Is CPSC enough for e-bikes and scooters? It's the U.S. product baseline. Pair it with a strong Virginia Tech score and a rotational system if you ride faster.
How do I check Virginia Tech ratings? Search the Helmet Lab database by the model name on the sticker.
Do rotational systems work the same on every helmet? No. Treat claims as model-specific, and only after the helmet fits.
Is there one U.S. helmet law for adult micromobility? No. Product certification is federal through CPSC. Where you must wear a helmet is still local.
Pull your shortlist in the Virginia Tech database, confirm a CPSC sticker in the shop, and leave the finalist on your head for 20 minutes before you pay. Register it if the brand offers that.