How to Buy a Bike Helmet That You'll Actually Wear

The best helmet is the one on your head. The second-best is the one you can afford. Here is how to get both.

Fit comes first

A helmet should sit level, two finger-widths above your eyebrows, snug enough that it does not shift when you shake your head. Try several brands, head shapes vary.

MIPS is worth it

MIPS is a low-friction layer inside the helmet that reduces rotational forces on your brain in a crash. It adds $20-30 to the price and is one of the few safety upgrades with real evidence behind it.

For e-bike riders

If you ride a Class 3, consider a NTA-8776 certified e-bike-specific helmet. They have more rear coverage for higher-speed impacts.

Replace it

After any crash. And every 5 years even without one, foam degrades.

Why your helmet matters more on an e-bike

E-bikes make it easy to ride faster and farther than on a regular bike. More speed means more energy in a crash, which makes a good helmet even more important. A helmet is the single most effective piece of safety gear you can wear, and a good one is comfortable enough that you will want to wear it every ride.

Arizona law

Arizona does not have a statewide helmet law for adult cyclists, but some cities have rules for younger riders. We recommend a helmet for every rider, every ride, no matter the age or distance.

Understanding certifications

• CPSC: the U.S. safety standard required for bike helmets sold in the United States.
• NTA 8776: a Dutch standard designed specifically for speed e-bikes, with testing at higher impact speeds and more head coverage.
• MIPS and similar systems: a layer that allows the helmet to rotate slightly on impact, reducing rotational forces on the brain.

How to check fit

• Measure your head just above the eyebrows and choose the matching size.
• The helmet should sit level, about one to two finger widths above your eyebrows.
• Adjust the rear dial until it is snug but not painful.
• Straps should form a "V" just below each ear.
• Buckle the chin strap so only one or two fingers fit between strap and chin.
• Shake your head: the helmet should not slide around.

Features for desert riding

In Arizona heat, ventilation matters. Look for helmets with large vents and internal channels that move air across your head. A visor helps with glare and sun. Bright colors and reflective details help drivers see you, and some helmets include built-in lights for extra visibility.

Helmet styles

• Road and commuter helmets: light, well ventilated, and good for everyday riding.
• Urban helmets: rounder shape, more coverage, often with built-in lights.
• Mountain bike helmets: more rear coverage and a visor for trail riding.
• Full-face helmets: maximum protection for aggressive off-road riding.

When to replace a helmet

Replace your helmet after any crash, even if it looks fine. The foam is designed to crush once, and damage may not be visible. Most manufacturers also recommend replacing a helmet every three to five years, since foam and straps break down with age, sweat, and sun. In Arizona, a helmet left in a hot car can age much faster.

Try it on in person

Helmet shapes vary by brand, and the best way to find one that fits your head is to try a few on. Stop by the shop and we will help you find a helmet that fits well, stays cool, and suits your riding style.

Caring for your helmet

Clean your helmet with mild soap and water, and let it air dry. Avoid solvents and harsh cleaners, which can damage the shell and foam. Store it in a cool, dry place out of direct sun. Do not hang it from the handlebars, where it can fall or get damaged. Replace pads when they wear out, and check the straps and buckle regularly.

Helmets for kids

Kids need helmets that fit their heads now, not ones they will grow into. A loose helmet will not protect them properly. Let them choose a color or design they like, which makes them more likely to wear it.

The bottom line

The best helmet is one that fits well, meets safety standards, and is comfortable enough to wear every time. Spend a little more for MIPS or similar protection if you can, especially if you ride an e-bike at higher speeds. And replace it after any crash. Your head is worth it, and a good helmet is one of the best investments any rider can make.

Visit the shop

PedalJets is at 4390 N Miller Rd, Suite 101, in Scottsdale, open Tuesday through Saturday from 10 AM to 5 PM. Call (480) 440-1099 with questions, or stop by and talk with our team in person. We are always happy to help, whether you are buying your first e-bike or keeping a well-loved one on the road.