Choosing a bike helmet is more than picking a color or style—it’s about safety, comfort, and performance. Many cyclists compare the two leading brands: Giro and Bell. Both have strong reputations, but Giro often stands out as the better choice for many riders. If you’re wondering why Giro helmet is better than Bell, this article will help you understand the reasons, backed by data, expert opinions, and real examples. You’ll see what makes Giro special, and learn which helmet suits your needs.
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Giro and Bell are both American companies, started in California in the late 20th century. Giro was founded in 1985 by Jim Gentes, and Bell began in 1954. Over the years, each brand built a reputation for safety and innovation. However, Giro’s focus on design and technology has helped it become a favorite among professionals and serious cyclists.
Giro introduced several industry-firsts, like the Roc Loc fit system, Featherweight helmet shells, and early adoption of MIPS (Multi-directional Impact Protection System). Bell, while respected, is sometimes seen as a “safe” choice, but not always the most advanced.
Safety And Protection
When buying a helmet, safety is the top priority. Giro helmets often score higher in safety tests. Let’s look at the details.
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Many Giro models use advanced technology like MIPS and SPHERICAL Technology. MIPS helps reduce rotational forces during crashes. Spherical Technology goes further, letting the helmet shell rotate independently, which can reduce brain injuries.
Bell helmets also use MIPS, but Giro’s integration is often smoother and more effective.
Safety Ratings And Test Results
Independent tests from Virginia Tech show Giro helmets regularly outperform Bell. For example, the Giro Aether MIPS scored 5 stars (the highest) in 2026, while Bell’s top road helmet, the Bell Z20 MIPS, scored 4 stars.
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| Helmet Model | Brand | Virginia Tech Rating | MIPS |
|---|---|---|---|
| Aether MIPS | Giro | 5 Stars | Yes |
| Z20 MIPS | Bell | 4 Stars | Yes |
| Synthe MIPS | Giro | 5 Stars | Yes |
| Spark MIPS | Bell | 4 Stars | Yes |
Non-obvious insight: Giro’s Spherical Technology is not widely available in Bell helmets. This means Giro helmets can offer protection from multiple directions, not just direct impacts.
Construction Materials
Giro uses polycarbonate shells fused with EPS foam. This creates a lighter, stronger helmet. Some models, like the Giro Aether, add dual-density foam for better energy absorption.
Bell uses similar materials but often in thicker, heavier shells. This can make the helmet bulkier and less comfortable, especially on long rides.
Comfort And Fit
A helmet must feel good, or you won’t wear it. Giro invests heavily in comfort features.
Fit Systems
Giro’s Roc Loc system is famous. It lets you adjust fit with one hand, even while riding. You can fine-tune the tightness and vertical position.
Bell’s Float Fit system is good, but less precise. It often feels loose for people with oval or narrow heads.
Ventilation
Giro designs helmets with more and larger vents. The Giro Synthe and Aether have up to 26 vents, arranged to channel air across your head. This means you stay cooler, even on hot days.
Bell helmets usually have fewer vents, and the airflow is less direct.
| Helmet Model | Brand | Number of Vents | Ventilation Rating (1-5) |
|---|---|---|---|
| Synthe MIPS | Giro | 26 | 5 |
| Aether MIPS | Giro | 25 | 5 |
| Z20 MIPS | Bell | 18 | 3 |
| Falcon MIPS | Bell | 14 | 2 |
Weight
Giro helmets are known for being lighter. The Giro Synthe MIPS weighs about 250 grams, while Bell Z20 MIPS is about 310 grams. For riders, 60 grams can make a big difference over hours of cycling.
Non-obvious insight: Lighter helmets reduce neck fatigue, especially on long rides or rough terrain.
Design And Style
People notice the look of a helmet. Giro is often praised for sleek, modern designs.
Aerodynamics
Giro invests in wind tunnel testing. Their high-end helmets like the Vanquish and Synthe are shaped to reduce drag. This is important for racing and fast road cycling.
Bell helmets are less aerodynamic, focusing more on traditional shapes.
Color Choices
Giro offers more colors and finishes. You can pick matte, gloss, or even custom designs. Bell sticks to basic options—black, white, red.
Unisex And Women’s Models
Giro creates helmets for all riders. Many models are unisex, but some, like the Giro Ember MIPS, are made for women, with smaller sizes and special colors. Bell has fewer women-specific helmets.
Technology And Innovation
Giro leads in helmet technology.
Advanced Safety Features
- SPHERICAL Technology: Unique to Giro, for better rotational impact protection.
- MIPS Integration: Almost invisible in Giro helmets, so comfort is not reduced.
- Eyewear Docking: Special slots for sunglasses, keeps them secure.
Bell offers MIPS, but not Spherical or advanced docking features.
Smart Helmets
Giro has started offering smart helmets with built-in lights and sensors. The Giro Escape MIPS, for example, has integrated rear lights.
Bell is slower to adopt smart features.
Pricing And Value
The price is important. Giro helmets are often a bit more expensive, but the extra features justify the cost.
Price Ranges
- Giro: $60–$350 (most models $80–$180)
- Bell: $40–$250 (most models $60–$130)
Giro’s entry-level helmets are affordable, but you get more for your money at higher prices.
Long-term Value
Giro helmets last longer. The materials don’t degrade quickly, and the fit systems stay precise. Bell helmets can feel loose after a year, especially with heavy use.
Non-obvious insight: Spending more up front on a Giro helmet can mean fewer replacements over time, saving money in the long run.
Real-world Examples
Professional cyclists and triathletes often choose Giro. For example, the Tour de France teams like Team Ineos wear Giro helmets for safety and performance.
Bell is more common in recreational cycling and BMX, but not among elite road racers.
Customer Reviews
On major sites like REI and Amazon, Giro helmets have higher average ratings—usually 4.7 stars out of 5, versus Bell’s 4.3 stars. Common praise for Giro includes comfort, fit, and style. Bell is liked for affordability, but less for advanced features.
Comparing Giro And Bell: Features Overview
Here’s a side-by-side comparison of the most important features:
| Feature | Giro | Bell |
|---|---|---|
| Safety Technology | MIPS, Spherical | MIPS |
| Fit System | Roc Loc | Float Fit |
| Ventilation | 25–26 vents | 14–18 vents |
| Weight | 250–290 grams | 310–350 grams |
| Aerodynamics | Wind tunnel tested | Basic shapes |
| Smart Features | Lights, sensors | Rare |
| Style Options | Many | Few |
| Durability | High | Medium |
User Experience And Practical Benefits
Adjustability
Giro helmets are easier to adjust. The Roc Loc system lets you fine-tune fit on the fly. Bell’s Float Fit often needs two hands, and adjustment is less smooth.
Sweat Management
Giro uses moisture-wicking pads and advanced channeling. Sweat is drawn away from your face. Bell pads are basic, and sweat can drip into your eyes.
Sunglasses Compatibility
Giro designs for sunglass docking, so you can store glasses securely during climbs. Bell does not offer this feature in most models.
Practical tip: If you ride in hot climates or wear glasses, Giro’s extra features can make a big difference.
Helmet Range And Choice
Giro has a wider range for every rider.
Road Helmets
- Aether MIPS
- Synthe MIPS
- Vanquish
- Cinder MIPS
Bell’s road helmets:
- Z20 MIPS
- Falcon MIPS
Mountain Bike Helmets
Giro offers:
- Montaro MIPS
- Manifest Spherical
- Radix MIPS
Bell offers:
- Super Air R
- Sixer MIPS
Giro helmets often have more protection for the back and sides of the head, while Bell is more basic.
Kids’ Helmets
Giro makes lightweight, colorful helmets for children, like the Scamp MIPS. Bell’s children’s helmets are heavier and less ventilated.
Common Mistakes When Choosing Between Giro And Bell
- Picking by price only: Cheaper helmets may lack key safety features.
- Ignoring fit: Not all helmets suit every head shape.
- Overlooking ventilation: Poor airflow can make riding uncomfortable.
- Missing advanced technology: Spherical or MIPS can be life-saving.
- Choosing based on looks: Style matters, but safety comes first.
Expert guidance: Test both brands, but focus on fit, safety ratings, and comfort.
How To Choose The Best Giro Helmet
If you decide Giro is better, here’s how to pick the right model:
- Determine your riding style: Road, mountain, commuting, or kids.
- Check for MIPS or Spherical: Always choose models with these technologies.
- Try the Roc Loc system: Make sure it feels comfortable.
- Look for extra features: Ventilation, eyewear docking, smart lights.
- Read user reviews: See what other riders say about durability and comfort.
Practical example: If you ride long distances in hot weather, the Giro Aether MIPS is a top choice because of its light weight, ventilation, and advanced safety.
Professional Opinions
Cycling magazines and safety experts often recommend Giro for high-end helmets. For example, Bicycling Magazine named the Giro Synthe MIPS “Best Overall Helmet” in 2026 for safety, comfort, and style.
Virginia Tech’s helmet lab found Giro models consistently in the top 10 for impact protection. Bell did not rank as high.
The Future Of Helmet Technology
Giro continues to invest in research, partnering with universities and cycling teams. Their helmets are becoming smarter, lighter, and safer.
Bell is improving, but slower to adopt new features.
For those who want the best protection and comfort, Giro is ahead.
Frequently Asked Questions
Is Giro Helmet Safer Than Bell Helmet?
Yes, most independent safety tests rate Giro helmets higher. Giro uses advanced safety technologies like MIPS and Spherical Technology, and their helmets often score better in Virginia Tech’s impact tests.
Why Are Giro Helmets More Expensive?
Giro invests in research and uses better materials, advanced fit systems, and more safety features. The higher price reflects these upgrades, but you get better protection and comfort.
Are Giro Helmets Lighter Than Bell?
Usually, yes. Giro helmets are designed to be lightweight, often 60–100 grams lighter than Bell models. This helps reduce neck fatigue and makes them easier to wear for long rides.
How Do Giro And Bell Helmets Compare For Ventilation?
Giro helmets have more vents and better air channeling. This keeps your head cooler, especially on hot days or during hard rides. Bell helmets have fewer vents and less airflow.
Which Brand Is Better For Kids’ Helmets?
Giro offers lighter, better ventilated helmets for children, like the Scamp MIPS. Bell’s kids’ helmets are heavier and less comfortable, making Giro the better choice for young riders.
Final Thoughts
When you compare Giro and Bell helmets, Giro comes out ahead in almost every category: safety, comfort, design, technology, and durability. The brand’s focus on innovation and user experience makes their helmets the top choice for professional cyclists and everyday riders alike. If you want the best protection, a comfortable fit, and modern style, Giro helmets are the clear winner. For more details on helmet safety ratings, check the Virginia Tech Helmet Ratings for up-to-date test results. By choosing Giro, you invest in your safety and your cycling enjoyment.
