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5STARCYCLES GUIDE
Helmet Size Guide
Measure once, check the chart, and order the right size the first time.
Between sizes? Email us at fivestarparts1@gmail.com with your measurement and the helmet you’re looking at, and we’ll help you pick the right size.
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Helmet Sizing Chart
Head circumference by helmet size
| Size | Inches | Centimeters |
|---|---|---|
| XS | 20½ to 21 | 52 to 53 |
| S | 21½ to 22 | 54 to 55 |
| M | 22½ to 23 | 57 to 58 |
| L | 23½ to 24 | 59 to 61 |
| XL | 24½ to 25 | 62 to 63 |
| 2XL | 25½ to 26½ | 64 to 67 |
This is a general guide. Sizing varies by brand, so always check the size chart on the product page before you order.
02
How to Measure Your Head
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1Get a soft tape measure. Use a flexible fabric or plastic measuring tape. A strip of paper and a ruler work too.
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2Position the tape. Wrap it around the widest part of your head, about 1 inch (2.5 cm) above your eyebrows and ears.
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3Keep it level. The tape should stay parallel to the ground all the way around. Don’t pull it too tight or leave it loose.
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4Record the measurement. Note where the tape overlaps. Take 2 or 3 readings and use the largest one.
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5Match it to the chart. Find your measurement in the chart above, then confirm it on the size chart for the helmet you’re buying.
Pro tipHelmet fit varies by brand and shell shape. A new helmet should feel snug but not painful, with no pressure points. The padding breaks in slightly over the first few rides.
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Sizing Tutorial Video
04
Frequently Asked Questions
How do I find the right helmet size?
Measure around your head just above your eyebrows and ears using a flexible tape. Match your measurement to the brand’s sizing chart for the best fit.
How should a motorcycle helmet fit?
Your helmet should fit snugly without being painful. It shouldn’t move when you shake your head, but it shouldn’t press too hard on any one spot.
Do helmets loosen up over time?
Yes. The interior padding compresses slightly with use, so a new helmet should feel comfortably snug at first.
Can I wear a helmet one size bigger for comfort?
No. A helmet that’s too loose won’t protect you properly in a crash and can shift while you ride.
What’s the best helmet for glasses wearers?
Look for helmets labeled “glasses-friendly.” They have extra space and channels in the padding to fit eyewear comfortably.
How often should I replace my helmet?
Replace your helmet about every 5 years, or after any impact, even if there’s no visible damage.
Are different brands sized the same?
No. Each manufacturer has its own size and shape standards. Always check the brand’s sizing chart before buying.
What’s the difference between DOT, ECE, and SNELL?
They’re different safety standards. DOT is the U.S. minimum requirement, ECE is used internationally, and SNELL helmets go through additional independent testing.
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