Fly Racing Helmet Size Chart | Adult & Youth Sizes

Fly Racing helmet size chart showing head circumference in centimeters and inches for adult XS to 3XL and youth sizes, with a how-to-measure head diagram.

Fly Racing Helmet Size Chart

Adult Helmets (off-road, street, MTB)

Size Head (cm) Head (in)
XS 53 – 54 20.87 – 21.26
SM 55 – 56 21.65 – 22.05
MD 57 – 58 22.44 – 22.83
LG 59 – 60 23.23 – 23.62
XL 61 – 62 24.02 – 24.41
2XL 63 – 64 24.80 – 25.20
3XL 65 – 66 25.59 – 25.98

Youth Helmets

Size Head (cm) Head (in)
Youth SM 47 – 48 18¼ – 19
Youth MD 49 – 50 19 – 19¾
Youth LG 51 – 52 19¾ – 20½

How to Measure

Measurement How to measure
Head Wrap a cloth tape around your head just above your eyebrows and ears. Pull it comfortably snug, read the length, then measure again and use the largest reading.

Notes: Sizing is provided by the manufacturer. Fly Racing does not guarantee a perfect fit.