Helmet Size Guide
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Fitting Guide
How to choose your helmet size
STEP 1: Measure
Use a measuring tape to measure around your head one inch above your eyebrows. Or use a string to measure and then lay it out and measure the length of the string.
STEP 2: Choose Size
Use the chart to convert measurement to hat size
STEP 3: Select Your Helmet
Select the helmet model you would like to purchase and review the specific size range available and order accordingly.
Download PDF Guides
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Troxel Conversion Chart
HEAD SIZE INCHES HEAD SIZE CM HAT SIZE 19 ⅝ 50 6 ¼ 20 51 6 ⅜ 20 ⅜ 52 6 ½ 20 ¾ 53 6 ⅝ 21 ¼ 54 6 ¾ 21 ⅝ 55 6 ⅞ 22 56 7 22 ⅜ 57 7 ⅛ 22 ¾ 58 7 ¼ 23 ⅛ 59 7 ⅜ 23 ⅝ 60 7 ½ 24 61 7 ⅝ 24 ⅜ 62 7 ¾ Disclaimer: This conversion chart is a guide only and does not constitute a guarantee as to the fit of the helmet. Some people may have a unique head shape changing what size they need. Some helmets fit different shaped heads better than others.