How to measure head circumference for bike helmet?

If the helmet is too loose, the straps may rub against your hair or scrape your ears. To measure the circumference of your head, place a tape measure around your head just behind your ears. If the helmet feels comfortable but is still a little loose, that’s fine. Adjust the straps to fit snugly.

How to fit head in helmet?

A bike helmet should fit snugly on your head, so it won’t move around and cause unnecessary injury. To determine if your helmet fits properly, place your fingers around the helmet all the way over the top. If the helmet is too loose, it won’t protect your head properly and may cause serious injury. If the helmet is too tight, it may be uncomfortable and will make it more difficult to move your head in all directions.

How to measure head size for bike helmet?

If you’re shopping for a bike helmet because you have a large head, you don’t want to be surprised by a helmet that either doesn’t fit or is too small. To measure your head size for a bike helmet, place a tape measure around the widest part of your head, above your ears but below your chin.

How to fit helmet to head size?

The size of bike helmets is measured by CMs (cubic centimeters) or DMs (diameter of the head in meters). The most commonly used head size for children and teens is between 52 to 58 CMs, while adult sizes are usually between 56 to 60 CMs. Larger heads may need a larger helmet. Use the head circumference table below to determine your head size.

How to measure helmet size for fit?

The general rule is that the helmet should fit snugly, but not overly tight, around your head. To measure the circumference of your head, begin by laying the helmet flat with the outside of the shell facing up. Using a tape measure, measure the circumference of the widest part of your head from just above where your eyebrows line up. If you have a square shape, you will want to add 5-10mm to the length of your head. If you have a circular shape, you will