Best Electric Bike Helmets
A Class 3 ebike holds 28 mph all day. The certification stamped inside almost every helmet sold in America was written around a slower crash than that. Here is what that actually means, and what to wear instead of worrying about it.
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Most helmet buying advice for ebikes is a bicycle helmet list with the word electric pasted on top. That is not useless, because a certified bicycle helmet is genuinely good equipment and it is what the overwhelming majority of ebike riders wear. But it skips the one question that makes ebikes different from bicycles, which is speed, and speed is the variable that helmet standards are built around.
The honest version goes like this. The mandatory US bicycle helmet standard certifies against a defined impact energy. That energy was chosen to represent a rider falling off a bicycle, not a rider being thrown off something sustaining 28 mph. Energy scales with the square of speed, so the gap between those two situations is larger than the speed numbers make it look. That does not mean your helmet is a fraud. It means the margin you are relying on is thinner on a fast ebike than it is on a beach cruiser, and there is a whole category of helmet designed to close some of that gap that almost nobody in the US market talks about.
Why speed changes the maths
Kinetic energy is proportional to the square of velocity. Double the speed and you have four times the energy to get rid of. That relationship is the whole reason helmet standards specify a drop height rather than just saying the helmet should be strong.
The US standard, CPSC 16 CFR Part 1203, is a drop test. The helmeted headform falls a fixed distance onto anvils of different shapes, and the acceleration measured at the headform must stay under a defined threshold. The drop height was chosen to represent falling head-first from roughly the height of someone sitting on a bicycle. In impact terms that is a modest amount of energy, arriving in a single, mostly vertical hit.
A crash on a Class 3 ebike at 28 mph is not that. The head arrives with the same downward component plus a large horizontal one, and the horizontal component is where the extra energy lives. It is also why the parts of the head that get hit change: a rider sliding or tumbling loads the rear of the skull and the temples far more often than the crown, and the crown is precisely where a ventilated road helmet puts most of its material.
Two things are true at once here, and skipping either one produces bad advice. A CPSC helmet at 28 mph is dramatically better than no helmet at 28 mph, and it is what nearly every ebike rider on the road is wearing. It is also being asked to do a job somewhat outside the envelope its test represents. The correct response is not fear, it is buying for coverage instead of for ventilation, and understanding that the speeds ebikes actually hold are higher than the speeds most riders imagine when they picture a bicycle crash.
CPSC, EN 1078 and the standard nobody mentions
Three certifications matter for this decision, plus one thing that is constantly mistaken for a certification.
CPSC 16 CFR Part 1203
Mandatory for any bicycle helmet sold in the United States. If a helmet is legal to sell here as a bicycle helmet, it meets this. That makes CPSC a floor, not a differentiator, which is why comparing two helmets on the basis that both are CPSC certified tells you nothing. It defines an impact test, a retention system strength test, a roll-off test, and a minimum coverage area.
EN 1078
The European bicycle helmet equivalent. Similar intent, slightly different test parameters, and you will see it on helmets from European brands sold internationally. A helmet carrying both marks has been tested to both, which is common and is a mild positive signal about how seriously the brand takes certification, but it does not mean the helmet is meaningfully tougher.
NTA 8776
This is the one worth knowing about. NTA 8776 is a Dutch standard published for speed pedelec helmets, written because the Netherlands has a large population of riders doing 45 km/h on assisted bicycles and the existing bicycle standard did not fit that use. It asks for two things a bicycle standard does not: a larger protected area, extending further down the back of the head and over the temples, and a higher impact test energy. It sits deliberately between a bicycle helmet and a motorcycle helmet.
The catch is availability. NTA 8776 models exist in North America but the selection is thin, models get discontinued, and plenty of helmets marketed at ebike riders carry only the usual bicycle marks. Read the certification sticker inside the shell. Marketing copy saying a helmet is made for ebikes is not a standard.
MIPS is not a certification
MIPS is a slip plane, usually a thin yellow liner, that lets the shell move a few millimetres relative to your head during an angled impact. Rotational acceleration is strongly implicated in brain injury, so reducing it is worth doing. WaveCel, Koroyd used as part of a system, and various brand-specific equivalents chase the same goal by different means. None of them is a legal standard, none of them makes a helmet suitable for a faster class of vehicle, and a MIPS helmet that fits badly is worse than a plain one that fits well. We go through the mechanism in detail in helmet sizing, fit and safety ratings.
What actually to look for
Six things, in the order they matter.
- Rear and temple coverage. Look at the helmet from the side. If the shell stops above the top of your ear and cuts up sharply at the back, it is a road racing shape built for airflow. An urban or ebike-oriented shell drops lower behind the ears and further down the occiput. This is the single largest real difference between helmet categories at ebike speeds.
- A certification you have verified. CPSC minimum. NTA 8776 if you can get it and you ride Class 3.
- A rotational system. MIPS or a genuine equivalent. Twenty to thirty dollars is not a hard call at 28 mph.
- A retention dial you can work one-handed. Cheap helmets use a sliding plastic cradle that loosens over a ride. A ratcheting dial holds tension and lets you snug the helmet at a stoplight without stopping.
- Eye protection. Underrated to the point of absurdity. At 28 mph an insect, a grit particle, or your own watering eyes will take your attention off the road at exactly the wrong moment. A drop-down visor, a clip-on shield, or a decent pair of cycling sunglasses all solve it. Pick one.
- Rear visibility. Integrated LEDs on a helmet sit higher than a seatpost light, which puts them in a driver's sightline over car rooflines. Helmet lights supplement rather than replace the lights on the bike.
The helmets worth your money
Five helmets covering five genuinely different situations. Prices are approximate bands and move constantly, particularly around model-year changeovers.
Lazer Anverz NTA MIPS
- Certified to the NTA 8776 speed pedelec standard per Lazer
- Extended rear and temple coverage, MIPS liner
- Integrated rear LED, dial retention
If you commute on a Class 3 bike and you can get one, this is the category answer rather than a compromise. The extra coverage is visible and the certification was written for your exact use case. It is heavier and warmer than a road helmet, which matters less than you expect on a bike that does most of the work. Verify the certification sticker on the specific model you receive, because speed pedelec ranges get revised.
Bern Hudson MIPS
- Urban shape with genuinely low rear coverage
- MIPS liner and dial retention
- Removable visor, light mount at the rear
Bern's urban line has been building this shape for years and it is the shape you want for a Class 2 commuter. Coverage is closer to a skate helmet than a road helmet without the awful ventilation skate helmets are famous for. It is CPSC, not NTA 8776, so treat it as a well-chosen bicycle helmet rather than a speed pedelec one.
Giro Caden II MIPS
- Commuter shape with rear coverage below the road-helmet cut
- MIPS liner at a sub-$100 price
- Roc Loc dial fit, light clip at the rear
The cheapest place we would tell someone riding 20 mph in traffic to land. You give up the coverage of the Bern and any NTA claim, and you keep the rotational liner and a proper dial. Anything much below this price point starts dropping the retention system first, which is the part that decides whether the helmet is still on your head at the second impact.
Bell Super Air R MIPS
- Removable chin bar, so it converts between open and full face
- MIPS liner, goggle-compatible eye port
- Heavily vented for a full face design
Built for enduro mountain biking, which happens to be a good match for a fast ebike on mixed surfaces. The chin bar comes off for the slow part of the ride and goes on for the fast part. It is a bicycle helmet with a chin bar, not a motorcycle helmet, and the certification reflects that. Worth knowing before you buy it for something it is not.
Bell Qualifier DLX MIPS
- DOT FMVSS 218 motorcycle certification
- Sealed face shield, full chin bar
- Substantially heavier and hotter than any bicycle helmet
If your bike does 40 mph on a throttle and you never pedal it, you are riding a motorcycle with pedals bolted on, and the helmet should match the vehicle rather than the marketing category. A DOT helmet is miserable on anything you pedal and completely appropriate on anything you do not.
The categories compared
| Helmet type | Standard | Rear coverage | Best up to | Typical price |
|---|---|---|---|---|
| Vented road helmet | CPSC | Minimal | 20 mph | $60 to $150 |
| Urban commuter | CPSC | Extended | 20 to 28 mph | $80 to $150 |
| Speed pedelec | NTA 8776 | Extended plus temples | 28 mph sustained | $180 to $280 |
| Convertible full face | CPSC plus downhill | Full, with chin bar | 28 mph, rough terrain | $220 to $350 |
| DOT motorcycle | FMVSS 218 | Full | Anything faster | $120 to $600 |
Swipe sideways to see all columns →
The best up to column is judgement rather than regulation. No standard says a CPSC helmet stops being appropriate at a particular speed. It says what energy the helmet was tested against, and the rest is you deciding how much margin you want.
Full face, and where the bicycle helmet stops making sense
The site's readers split into two groups here and they need different answers.
If you ride a Class 3 commuter or a fast street legal ebike, a convertible full face is a reasonable upgrade and an open-face urban helmet is completely defensible. Chin bars protect the lower face, which takes a meaningful share of injuries in bicycle crashes, and the cost is weight, heat, and looking like you are about to race downhill on your way to the office.
If you ride a motorcycle-style electric bike, something with a 3000W motor and a 40 mph top speed and no functional pedaling, the calculation changes completely. That vehicle is outside the ebike classes, which is exactly the point made in our explainer on the class system. It is a light motorcycle. A bicycle helmet on it is under-equipped by a wide margin, and in many states a helmet meeting the motorcycle standard is what the law requires anyway once the machine falls into the moped or motorcycle category. The same logic applies to the fastest electric dirt bikes, where a motocross helmet plus goggles is the norm.
What the extra coverage costs you
What extended coverage buys
- Protection over the occiput and temples, which is where fast falls tend to land
- A higher tested impact energy if the helmet carries NTA 8776
- More shell area for lights, mounts, and reflective material
- Better retention under a tumbling load, since more of the head is captured
- A visor that keeps rain and low sun out of your eyes at speed
What you give up
- Roughly 100 to 250 grams more weight on your neck
- Noticeably hotter in summer, which is a real deterrent to wearing it
- Fewer models, thinner sizing options, and higher prices
- Some rear coverage designs foul on a rider looking up in an aggressive riding position
- Harder to find in a shop where you can try before you buy
The weight and heat penalties are not trivial and they are the reason so many riders end up back in a road helmet. A helmet you leave hanging on the handlebar because it is too hot protects nothing. If you ride in a genuinely hot climate, take ventilation seriously as a safety feature rather than a comfort one, and pick the most-covered helmet you will actually wear every day.
Which one you should buy
- Class 1 or Class 2, mostly paths and neighbourhood streets: any well-fitting CPSC helmet with MIPS. The Giro is enough. Spend the difference on lights.
- Class 2 commuter in traffic: the urban shape. Rear coverage and a rear LED do more for you than 40 grams saved.
- Class 3 daily, 25 mph or more sustained: chase NTA 8776 first. If you cannot find one in your size, the best-covered CPSC urban helmet you can get, plus eye protection.
- Fast ebike on mixed or rough surfaces: convertible full face.
- Anything over 30 mph, throttle-driven, unregistered or otherwise: DOT motorcycle helmet, and read how your state classifies the machine before you ride it on a public road.
- Buying for a child on any electric bike: size by head circumference, not age. See our kids helmet guide.
Whichever you choose, fit decides most of the outcome. A helmet that slides back on your forehead when you push it is not protecting your forehead, regardless of what is printed inside it. Work through the fit checks in helmet sizing and safety ratings before you settle, look at integrated light and crash detection helmets if you commute in the dark, and check what your state requires so you know whether the decision is yours at all.