Sizing: My dirtbike helmet sticker says 57-58 cm so I'm guessing I should get the S/M but I have a big nose, to much pressure gets very uncomfortable?
513266
If your head is larger than that of a typical 7th grader even the XL will be TOO small to fit over your mouth comfortably. In addition, it will FLATTEN your nose. This is, however a very well constructed garment and is well suited for a child!
513267
Go with the next size up. That s/m is too tight for me, and I am 5'5" at 165.
812334
Normally the Helmets size are in cm, for example my size are XL which is 60 to 62 cm, in your case this helmet can by OK for you due to the IV2 helmets is normally smaller than other Brands
963975
My son and I use medium, it fit slightly tight, but it fine with us as the one we have before was also a Bell medium different model and it was too lose. If it is uncomfortably tight get the large. Not sure what your using the helmet for, we race BMX and if the helmet move it interferes visibility.
392868
tough question because every company has their own sizing chart. If you haven't already, check their website for a sizing chart. I ordered a Medium. It has an adjustment that is easy to use with the helmet in place. The range of the adjustment is pretty impressive. It can go so small that there is no way I could possibly get my head in it, and yet it can get so big that it would easily fall off of my head. My head is 22.5 inches around (just above the eyebrow). That's the best I can do.
2134139
My experience w/ motorcycle covers has been that a looser fit* is usually more convenient for putting on/taking off. So given that they say the small is for a 50cc scooter, I'd probably choose the medium instead, for greater flexibility [fwiw, I got the large scooter cover, & it seems like its a good size for my mtn bike. YMMV] * - [within limits. Obviously if you're getting a towing cover for transport, this is a specialized function & requires a properly-sized, tight fitting TOWING cover. Also, if you live someplace that it gets really windy, then you will want a tighter fit to keep the cover from blowing away.]
2135771
Best way I can think of is to go to your nearest bike shop and try different size helmets and that should be your size though out the helmet range.
690306
Hello, I used a chart from http://www.motorcycle-superstore.com/161/MNGR_POP/General-Motorcycle-Helmet-Size-Charts.aspx which showed that a 22.5" circumference head was about a medium so I hoped that this helmet would follow the averages which it appears it did.
1965341
I found measurements on another site https://sites.google.com/site/kidsbikesaccessories58593/-bell-trigger-youth-bike-helmet "Universal youth size fits 19.75 to 22.5-inches (50 to 57-centimeters)"
1391768
Check the size inside. Mine has a M/L sticker. I wear a 7 1/8 hat and have my helmet down to the smallest setting for a good fit.
392869
This is what I used to make sure I got the right size. Hope it helps. Its from the Lucky Bums website. Remember size is in Centimeters. Look at where it says "Snow Sports Helmet Sizing Chart". I think I was between sizes so I went to the next largest size. Nice thing about Amazon, you can always exchange it or refund if its not right. http://luckybums.com/sizing-chart.aspx
1775370
My head measured 22 & 1/4 inchs. So I picked medium. On inside of helmet it says 57-58cm. It fits me perfectly and I'm very happy with it
13791
I would consider your riding conditions ( traffic, city or country ) and your riding skills. Then make your own determination as to which helmet would better serve your needs.
42671
I would go with the medium, you can adjust down using the wheel at the back of the suspension inside the helmet. If it's a little too small you'd have no room to adjust.
2135772
I think there's a sizing guide probably for the helmet on amazon. They should be standard sized, so yeah just measure your head. Or go to local shop that sells helmets and try on a large
392863
This is what I used to make sure I got the right size. Hope it helps. Its from the Lucky Bums website. Remember size is in Centimeters. Look at where it says "Snow Sports Helmet Sizing Chart". I think I was between sizes so I went to the next largest size. Nice thing about Amazon, you can always exchange it or refund if its not right.http://luckybums.com/sizing-chart.aspx
653138
you're probably between 47cm and 50cm. The 47cm has a very short top tube, good if you are into an upright riding style or have back issues. Otherwise, pick the 50cm.
613369
My hat size is 7 1/4 and I got a medium. If you wear a large helmet I would get a large