Free Shipping over $49.99 Learn More ZillaCash: $5 for every $100 Learn More Customer Service From Riders Learn More

O'Neal Youth 1 & 5 Series Helmet Sizing

Helmet Size Head (cm)
Youth SM 47-48
Youth MD 49-50
Youth LG 51-52
Youth XL 53-54

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How to Measure

  • H Head
    Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.