Some people prefer the winds of freedom to hit them squarely in the face. If that's your style, Bonanza's your helmet. US DOT-certified for safety. Lightweight and generously padded for comfort.
Technical Details
No two helmet models from different manufacturers will fit identically on the same wearer's head. For this reason, please refer to our sizing chart and follow our fitment instructions carefully before merely ordering a new helmet in the same size as the one you're currently wearing.
Size | Head measurement | US Hat size |
---|---|---|
XS | 20⅞ – 21⅜ | 6⅝ – 6⅞ |
S | 21½ – 22 | 6⅞ – 7⅛ |
M | 22⅛ – 22⅝ | 7⅛ – 7⅜ |
L | 22¾ – 23¼ | 7⅜ – 7⅝ |
XL | 23⅜ – 23⅞ | 7⅝ – 7⅞ |
XXL | 24 – 24½ | 7⅞ – 8⅛ |
Size | Head measurement | US Hat size |
---|---|---|
XS | 53 - 54.25 | 6⅝ – 6⅞ |
S | 54.5 - 55.75 | 6⅞ – 7⅛ |
M | 56 - 57.25 | 7⅛ – 7⅜ |
L | 57.5 - 58.75 | 7⅜ – 7⅝ |
XL | 59 - 60.25 | 7⅝ – 7⅞ |
XXL | 60.5 - 61.75 | 7⅞ – 8⅛ |
In order to best determine fit, we advise comparing our helmet’s measurements to a similar helmets you already own. When taking your head measurement, measure the largest circumference, usually found at your your temple.
For any sizing, styling, or general inquiries, please contact us.
We’ve got a no hassle approach to exchanges and even cover shipping both ways in the USA. Dig in to the details for all returns and exchanges here.
Our checkout is verified and secured with bank level encryption so you never have to worry about your money.
Spend over $100 in our online store and your order ships for free within the USA. Orders placed before 2:00PM PST generally go out the same day so you get your stuff fast.
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Just recieved the helmet and its perfect. The vintage white color is amazing and quality is top notch. Does not give a outrageous bobble head look. Only other way is to not wear a helmet. I got the XL and it fits as chart sizing says.
Biltwell came through for me during the pandemic when Bell failed. Great helmet, very comfortable!
I’ve been looking for a good 3/4 and this one takes the cake. It’s lightweight and super comfortable. Plus you can’t beat the vintage white.
I’ve been through a few helmets trying to find a good 3/4. This one is by far the best I’ve worn. It’s lightweight and super comfortable. And you can’t beat the vintage white color.