Save an Extra 15% on Select Sale Items »

Out of Stock

Item # ONI0022

Don't worry though, we have a lot more Mountain Helmets in stock than that.

View Similar Products
Item # ONI0022


When it comes to full face helmets, having a background in motorsports has its advantages. Few cycling-specific full face helmets can claim to be DOT certified, and if they are, they tend to be portly, to be polite. The One Industries Gamma Helmet builds on One Industries' extensive moto experience to offer one of the lightest safety-rated helmets available.

To pass DOT certification, the Gamma uses a pre-preg reinforced fiberglass shell. And, it easily passes safety standards set forth for cycling helmets. The shell is paired with a dual density EPS liner, which adds to its ability to slow varying impact forces. While safety first is the name of the game, helmet weight is an equally important factor. The lightweight shell won't blow up your neck muscles midway through a day of lift riding, and the EPS liner and shell's flow-through ventilation with large intake and exhaust ports keep your noggin cool. But no matter how much air flow you can push through a helmet you're still going to work up a sweat. So, to keep the Gamma stink-free, its moisture-wicking Nylex comfort liner is removable and easily cleaned. 

The One Industries Gamma Helmet comes in BOT White, BOT Cyan, Crypto Red, Lightspeed Black and sizes X-Small through X-Large.

Tech Specs

Adjustable Vents:
Recommended Use:

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Product Fit:

Runs smallTrue to sizeRuns large

Add Your Size


Height (ft, in):

Weight (lbs):

Size Purchased:

Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

Here's what others have to say...