Why Finding the Right Fit Matters  

We want your PIKIO helmet to fit comfortably from day one. Since we don't yet have physical locations for try-ons, we're here to help you find the right size before you order.

Following our sizing guide and fit recommendations can help minimize the need for returns or exchanges, saving you time and making your experience with PIKIO as smooth as possible.

Measuring Circumference

  • Position the measuring tape about 2.5 cm (1 inch) above your eyebrows
  • Wrap the tape around the widest part of your head, just above your ears
  • Keep the tape level and snug, but not tight
  • Note the measurement in both centimetres and inches
  • Take the measurement 2-3 times to ensure accuracy

Measuring Length and Width

  • Measure head length from the center of the forehead to the furthest point at the back of the head
  • Measure head width at the widest point of the head, typically just above the ears
  • Take measurements in a straight line and avoid following the contours of the head
  • Having someone assist with the measurements can make the process easier and improve accuracy
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Step-by-Step Video Guide

Follow along this video if you're unsure how to measure your head length and width. All you need is a piece of cardboard, a ruler, a pen, and a pair of scissors.

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 Pro Measuring Tips 

  • Measure at the end of the day when your head may be slightly larger
  • If you have long or thick hair, consider how you'll wear it while cycling (ponytail, bun, etc.)
  • If you're between sizes, we recommend sizing up for better helmet fit adjustment range
  • No measuring tape? Use a piece of string, then measure against a ruler

 Why Proper Helmet Size Matters 

  • A well-fitted bike helmet stays in place during impact, ensuring our OBLIK technology and impact protection features work as designed
  • Even the best rated bike helmet won't protect you properly if it's the wrong size
  • Proper helmet fit prevents pressure points and headaches during urban riding or long-distance cycling
  • Correct sizing ensures high airflow ventilation channels align properly with your head
  • The right lightweight helmet fit feels almost weightless and secure

What is my helmet size?

Helmet Size Guide for PIKIO Si