BELL | SE03 3mm DSAF Shield | Helmet Visor | GP3, GTX3, HP3
BELL | SE03 3mm DSAF Shield | Helmet Visor | GP3, GTX3, HP3
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Double Screen Anti-Fog Shield for GTX3, GP3 and HP3 Bell Helmets
The Bell SE03 3mm Shield is a race-grade, injection-molded polycarbonate visor designed for optimal visibility and impact resistance. With integrated DSAF (Double Screen Anti-Fog) technology, it keeps your line of sight clear in humid or cool conditions. Compatible with Bell GP3, GTX3, and HP3 helmets, and available in a wide range of colors to suit all light conditions and preferences.
Key Features
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3mm Injection-Molded Polycarbonate Shield
Durable and optically correct to withstand high-speed impact and track vibrations. -
DSAF (Double Screen Anti-Fog) Technology
Reduces internal fogging and maintains visibility during wet or humid sessions. -
Wide Range of Colors and Finishes
Choose from Clear, Light Smoke, Dark Smoke, Amber, Yellow, Silver Mirror, Gold Mirror, Blue Mirror, Iridium, ML Red, ML Blue, ML Green, and Pink/Red Mirror—ideal for various track light conditions. -
Helmet Compatibility
Precision fit for Bell GP3, GTX3, and HP3 helmets. -
Tear-Off Posts Included
Supports standard tear-off systems for quick mid-session debris clearing. -
Homologations:
- Meets same homologations as your helmet
PICK YOUR VISOR—SEE CLEARER, DRIVE HARDER!
SKU:2010002
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BELL & FERRARI - Technical Partnership
BELL - SmartLock™ system
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BELL HELMET SIZING CHART
STEP-BY-STEP RACING & KARTING HELMET SIZING GUIDE
Measuring your head accurately is the first step towards finding the perfect helmet. Here, we provide a step-by-step guide to help you measure your helmet size effectively.

Accurate Head Measurement Techniques
- Use a flexible tape measure: Wrap it around your head approximately one inch above your eyebrows and ears, reaching the widest part of your head at the back.
- Ensure even pressure: The tape should be snug but not tight, ensuring accurate measurement without compressing your scalp.
- Take multiple readings: Measure at least three times to ensure consistency, using the largest measurement for determining your size.
- Consider additional wear: If you wear accessories like a balaclava or head sock, ensure you wear them during measurement for an accurate fit.
These steps ensure you accurately measure your head, providing a reliable starting point for helmet selection.

Tools for Measuring Helmet Size
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Accurate measurement tools are essential for determining the correct helmet size. Flexible tape measures are ideal due to their ability to wrap smoothly around the head's contours.
- Alternatively, a piece of string can be used in place of a tape measure by marking and measuring against a ruler afterward. This method is particularly useful if a flexible tape measure is not available.
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Digital calipers can provide highly accurate measurements and are used by professionals for precise fitting.
- Ultimately, the choice of tools depends on personal preference and availability. However, ensuring accuracy is paramount in every method to achieve a proper fit.
⚠️ IMPORTANT: Never order your helmet based on your last helmet size—especially if it’s a different brand. Helmet sizing can vary. Always remeasure your head before buying.

BELL - Helmet Care & Maintenance
Essential Racing and Karting Helmet Care Tips
Your helmet is more than just equipment—it's your head's protector, and it's a part of your personality and branding throughout your racing career. With proper care, you can ensure its longevity and peak performance. Discover essential racing and karting helmet care tips below that guarantee your safety and style remain uncompromised.
The exterior of your racing helmet serves as its first line of defense. Here's how to maintain its pristine appearance and protect its integrity:

EXTERIOR CARE
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Handle Gently: After sessions, place your helmet vertically on a stable surface to let it dry. Avoid knocks, drops, or placing it upside down on seats or other surfaces—karting drivers, you know what I'm talking about! Always carry it in a proper helmet bag.
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Air Dry: Allow your helmet to air dry completely after each use.
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Be Shield Smart: Clean the visor with a designated clean microfiber cloth and water to prevent scratches.
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After Weekend Care: At the end of the weekend, let your helmet dry completely before placing it in the bag until the next race. If possible, give it a thorough cleaning with a microfiber cloth and water.
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Use Helmet-Purposed Cleaners: Invest in high-quality cleaners specifically designed for helmets, like Molecule or the BELL helmet care line. Avoid harsh household chemicals or solvents; if necessary, use mild dish detergent like Dawn, Meyer’s, or Palmolive.

INTERIOR CARE
A clean interior ensures a comfortable, non-smelly ride. Follow these steps for proper helmet cleaning:
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Moisture-Wicking Gear: Consider wearing a balaclava to manage sweat and prolong interior freshness, keeping oils in the balaclava. Wash the balaclava daily!
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Mild Cleaning Agents: Hand wash fit pads and lining using mild soap and a soft cloth.
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Air Dry: Allow your helmet to air dry completely after cleaning.
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Keep It Fresh: Use helmet-safe deodorizers to maintain a pleasant smell.

ON-TRACK CARE
Proper care after every session is crucial for maintaining your helmet's integrity and performance. Follow these steps to ensure your helmet stays in top condition:
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Post-Session Drying: Always dry your helmet after each session. Place it on a stable rack where it can air out effectively.
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Stability and Safety: Ensure the helmet rests on a stable surface where it won’t be knocked over or damaged. Proper placement helps maintain its shape and structure, preventing unforeseen damage from falls or collisions.
TRAVELING HELMET
Transporting your helmet securely during air travel is vital to prevent damage or loss. Keep these tips in mind:
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Carry-On: Never check your helmet as luggage. Always carry it with you in the cabin to ensure it reaches your destination.
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Avoid Damage: Keeping it with you protects the helmet from being mishandled or damaged by luggage handlers. Checked baggage can often be thrown around, risking damage to the helmet.
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Be Prepared: Arriving at your race destination without your helmet can result in scrambling for a last-minute replacement, which isn’t ideal for performance or safety. Ensure it’s safely with you at all times.
STORAGE TIPS
Proper storage extends your helmet's lifespan. Here's how to protect it when not in use:
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Cool, Dry Place: Store it away from sunlight and extreme temperatures.
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Helmet Bag: Use a padded helmet bag for extra protection.
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Avoid Wall Hooks: Hanging on mirrors or hooks can damage interior padding unless the helmet is only for exhibition, "retired."
Even with meticulous care, racing helmets have a lifespan. Most experts, including Bell, advise replacement every five years or when:
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There's an accident involving helmet contact with another kart, internal car parts, or the track.
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Cracks appear in the shell, or there is visible damage.
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The interior padding is loose or compressed.
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There is strap wear or cuts.
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Updated safety certifications are available; always check the SNELL, FIA, or SFI specs validity.
If in doubt, consult your manufacturer or racing organization for advice.
ASSISTANCE
Have questions about racing safety equipment or are you looking for helmets for auto racing and karting? Contact us for expert advice and explore our premium range of Bell and B2 Helmets for your karting and racing needs!
By following this guide on racing helmet care guide, you ensure that your helmet, your trusted racing companion—remains in top shape. Hit the track with confidence, knowing your safety gear is as passionate about racing as you are!
TAKE CARE OF YOUR LID!
EXTRA INFORMATION
SHIELD INSTALLATION AND CLEANING
It is important to properly remove and install shields onto your helmet to guarantee the highest level of vision clarity and overall protection. By following these simple steps, you will be able to assure your shield is in the best possible condition to succeed in any application.
Remove both the left and right-side shield pivot screws using the hex wrench provided with your helmet.
Remove the left and right-side friction sliders and screws using the hex wrench provided.
Remove the shield from the helmet and inspect for scratches or imperfections that may cause a decrease level of vision clarity.
Using only the highest quality of automotive, water-based glass cleaner, gently clean the visor using a microfiber cloth to assure a scratch-free cleaning.
To re-install the shield, place the shield back on the helmet and place the pivot screws back into the helmet. Be sure to not overtighten the screws, as this may damage the screw threads or pivot inserts.
Replace the friction sliders and screws and adjust to the desired level and close the shield. Adjustment of the eccentric button may be required.
Check the action and function of the newly replaced shield prior to use to assure the installation was correct.