If you're buying a helmet for the first time or have had issues with helmet  fit in the past, this guide will help you achieve the perfect fit! How to Measure Helmet Size Trying the Helmet On Checking the Fit Testing the Fit Retention Check   How to Measure Helmet Size Start by measuring your head size  using a fabric tape measure. Wrap the tape measure around the largest part of your head, just above your eyebrows, and note the measurement in centimeters or inches. Recheck your measurement if there have been changes in your hairstyle or weight, or if you are switching brands, as sizes can vary.When choosing a helmet, budget options typically come in sizes from extra small to extra-large, each covering a range of dimensions. Higher-end helmets offer more precise sizing, often in one-centimeter increments, providing a more tailored fit.   Trying the Helmet On Once you have your size, it's time to try on the helmet. Hold the chin straps and gently pull them...