The Studds Thunder D4 has a strong outer shell to protect against adverse impacts. It features good ventilation, a comfortable, hypoallergenic liner, and a quick-release visor and chin strap.
Studds Thunder D4 Helmet – Size Guide
|
Helmet Size |
Head Circumference (cm) |
Head Circumference (inches) |
Fit Type |
|---|---|---|---|
| Medium (M) | 57 – 58 cm | 22.4 – 22.8 in | Snug fit for average head size |
| Large (L) | 59 – 60 cm | 23.2 – 23.6 in | Slightly roomier, ideal for bigger head shape |
| Extra Large (XL) | 61 – 62 cm | 24.0 – 24.4 in | Best for broader or larger head size |
How to Measure Your Helmet Size
- Use a soft measuring tape.
- Wrap it around your head 1 inch above your eyebrows.
- Make sure the tape goes above your ears and around the widest part of your head.
Match your measurement with the table to select the right helmet size.
Key Features
- The helmet has a strong outer shell for high-impact protection.
- It has an absorbing EPS liner for enhanced safety.
- The dynamic ventilation system ensures a consistent flow of fresh air.
- A hypoallergenic and replaceable liner offers comfort and hygiene.
- The quick-release visor allows for easy and convenient operation.
- The secure chin strap ensures a snug and safe fit.
- Its streamlined design reduces wind resistance for a smoother ride.
Why Choose Studds Helmets?
- Protection: Studds helmets are made with strong materials for reliable protection.
- Comfort: The hypoallergenic liners ensure that you stay comfortable and itch-free.
- Safety: All Studds helmets include international safety certifications like ISI and DOT.
- Value for Money: Studds helmets offer quality and safety at budget-friendly prices.
- Style: The sporty designs and vibrant graphics make them visually appealing.
Note: The price for the helmet may vary based on availability and location.
Best For:
- Daily Commute: It offers protection and comfort for city rides.
- Long-Distance Riding: It’s perfect for highway journeys and has added safety features.
- Weekend Adventures: It is best for exploration trips, ensuring style and reliability.
Safety:
- Impact Protection: The strong outer shell provides excellent impact protection.
- Safety Certifications: The helmet meets ISI and DOT safety standards.
Helmet Maintenance and Care Instructions:
Regularly clean the liner and cheek pads with mild soap and water to maintain your helmet. Replace parts like the visor or interior padding when they show signs of wear to extend the helmet’s life.






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