Cyber US-39 Helmet


$64.99 $69.99
7% Off - Save $5.00

  • Description
  • 5 Reviews
  • Ask a Question
  • Sizing Chart
Description Item #CYB0008
  • Thermoplastic alloy injected shell.
  • Tool-less quick change shield.
  • Removable, washable interior.
  • Chin and forehead intake, side and rear exhaust venting.
  • Meets or exceeds D.O.T. standards.

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5 Reviews
4.9 out of 5 stars
5 Star   4 4 Star   1 3 Star   0 2 Star   0 1 Star   0
Verified Purchaser
Comfort   Performance   Sizing - true to size?   Style   Weight  
Great Product

helmet seems to be durable and is comfortable to wear

Verified Purchaser
Comfort   Performance   Sizing - true to size?   Style   Weight  
Great Helmet

Helmet fits great. Very Comfortable.

Verified Purchaser
Suffolk County, NY, USA
Comfort   Performance   Sizing - true to size?   Style   Weight  
Feels comfy, light and awesome price

pretty comfortable compare to two different helmets i own , so the breaking in is pretty quick, the vents work well for use while riding . easy clip off for the visor release compare to my afx helmet which i kept breaking the clips , not heavy at all and for its price and previous reviews , it was an easy and satisfying choice

North Wilkesboro, NC, USA
Comfort   Performance   Sizing - true to size?   Style   Weight  
Real good purchase!!

The overall raring of the helmet was good. The style was great with awesome graphics. And with the locking visor the performance was also good. And i will tell my friends about this helmet.

Vidor, Tx
Great Quality for Price

This helmet has adequate airflow to keep your head cool. The helmet fits nicely and feels great as well. Great feature is the lock on the visor to help keep it shut while riding. Overall a great helmet for the low price.

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Ask a Question

There have been no questions asked about the Cyber US-39 Helmet.

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SizeHead CircumferenceHat Size
X-Small 20.375" - 21.125" (51.8 - 53.7 cm) -
Small 20.5" (53 cm) 6.5
Medium 21.24" (55 cm) 6.75
Large 22.875" (59 cm) 7.25
X-Large 23.625" (61 cm) 7.5
2X-Large 24.5" (63 cm) 7.75
3X-Large 25.25" (65 cm) 8


1. Measure your head size. To do this, pass a tape measure horizontally around your head at a height of about one inch above your eye- brows. When done properly, you will have measured the largest part of your head.

2. Check your measurement with the helmet sizing chart and select the closest size. As the helmet may not always meet your head size exactly, and your head measurement may fall between two sizes, first try the smaller size.


1. Expand the helmet opening by pulling outwards on each chinstrap, and slide your head into the helmet. If you are unfamiliar with helmets you may be reluctant to pull the helmet down, as it may feel too tight. Even if the helmet is difficult to put on, please use the smallest helmet possible. The helmet should feel snug. If the helmet is not tight, it is too big for you. New helmets will break in and loosen slightly over time.

2. Once the helmet is on:

  • Check that the helmet inner lining fits snugly all around your head.
  • Check that the top pad presses on the top of your head.
  • Check that the cheek pads press up against your cheeks. When you open and close your mouth, you should drag your teeth along the inside of your cheeks.
  • Check to make sure that you cannot easily slide your finger into the helmet along the side of your temple.
  • Hold the helmet with one hand on each side. Without moving your head, try to move the helmet up and down, and side to side. You should feel the skin of your head and face being pulled as you try to move the helmet. If you can move the helmet around easily, it is too big. Try a smaller size. Please note that during this check, the chinstraps should be properly fastened.


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