# Helmet sizing

**URL:** <https://forums.speedlife.net/t/helmet-sizing/263840>\
**Category:** Shift518 Automotive\
**Created:** [May 21, 2012, 7:17pm UTC](https://forums.speedlife.net/t/helmet-sizing/263840 "2012-05-21T19:17:09Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![RocketPunch](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rocketpunch/32/6429_2.png) [@RocketPunch](https://forums.speedlife.net/u/RocketPunch)\
**Post date:** [May 21, 2012, 7:34pm UTC](https://forums.speedlife.net/t/helmet-sizing/263840/3 "2012-05-21T19:34:38Z")

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> [@Finally got the tires and rims mounted on the RX7, take a peek...](https://forums.speedlife.net/t/finally-got-the-tires-and-rims-mounted-on-the-rx7-take-a-peek/49656/2):
>
> So I’m looking to buy either an arai or shoei helmet I have a Kali carbonfiber one now and picked up the exo 700 for 80$ but it was way too tight and my Kali is kind of loose I know all helmet company’s sizes don’t match up so I guess my question is what can u compare an arai large to? I wore a large icon but the large scorpion was way too tight

My suspicion is your head shape might be giving you more trouble than sizing. e.g. if you have a round head shape and try to fit in a narrow head shape helmet, even if it is actually the correct size, it might still create a pinch spot for you. Also, some brand, iirc like Arai, have different cheek pad thickness, so you have a little bit of adjustment there.

I guess the really true way to know is try different brands on.

Check these links out:

Helmet shape: [http://www.webbikeworld.com/motorcycle-helmets/motorcycle-helmet-shapes.htm](http://www.webbikeworld.com/motorcycle-helmets/motorcycle-helmet-shapes.htm)

Helmet fitment by Arai: [http://www.shift518.com/showthread.php?t=29619&highlight=arai+leno](http://www.shift518.com/showthread.php?t=29619&highlight=arai+leno)

Hope this helps.

P.S. I am assuming you already and actually buy helmets base on the actual measurement of your head and per the manufacturers sizing chart.

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