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iXS MTB Helmets Size Chart

Trigger X Helmet
Size Head Circumference (cm)
S 53 - 56
M 56 - 59
L 59 - 62
Open Face Helmets & Trigger FF (with headring adjustment)
Size Head Circumference (cm)
XS/S 49 - 54
S/M 54 - 58
M/L 58 - 62
XL (Wide) 58 - 62
Full Face Helmets (no headring adjustment)
Size Head Circumference (cm)
XS/S 49 - 54
S/M 53 - 56
M/L 57 - 59
L/XL 60 - 62

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.