GMax GM45S Helmet

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GMax GM45S Helmet

Rating: 10

(4 Reviews) Read Reviews

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List Price: $49.95
Sale Price: $36.95

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GMax GM45S Helmet

Item Code: GMaxGM45SSolid
Color:Flat Black and Black
Certifications:DOT approved

Gmax leads The helmet industry with another innovative helmet, the GM45S half Helmet. Lightweight small shell design that sits down on your head with Gmax industry leading 'fit' and 'no bull venting design' all for a reasonable price!


  • Premium venting reduces heat at the top of the head, comfort liner, shell and styro designed for max venting without reducing the integrity of the helmet
  • Gmax premium fit for the maximum comfort
  • Premium soft materials used for padded chin strap covering
  • DOT approved shell and premium styro
  • Always do chin strap up securely' security warnings

Size Chart

Helmet Sizing Information.We ask that you use the following information to help choose the proper size helmet. In order for a helmet to protect properly and be the most comfortable, it must be size to your head correctly.

To find the Correct size helmet for a person's head:

  1. Measure the head circumference one-inch above the eyebrows and ears
  2. Using the circumference measured, use the size chart below to find the approximate size
  3. Once you have tried on the helmet it should fell snug equally around the head. The helmet should not feel too tight or too loose at any point around head.

*** Please remember that all head shapes vary slightly and that this sizing chart is to be used as a starting guide, not an exact guide.

Metric cm Inches Letter Number
53 - 54cm 21-1/4" - 21-5/8" XS 6-3/4 - 6-7/8
55 - 56cm 22" - 22-7/16" S 7 - 7-1/8
57 - 58cm 22-13/16" - 23-1/4" M 7-1/4 - 7-3/8
59 - 60cm 23-5/8" - 24" L 7-1/2 - 7-5/8
61 - 62cm 24-3/8" - 24-13/16" XL 7-3/4 - 7-7/8
63 - 64cm 25-3/16" - 25-5/8" XXL 8 - 8-1/8
65 - 66cm 26" - 26-3/8" XXXL 8-1/4 - 8-3/8
67 - 68cm 26-1/2" - 26-5/8" XXXXL  

Customer Reviews

Rated 10 out of 10 based on 4 reviews
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Great helmet

Comment: It fits well and doesn't catch the wind as bad as some of the other helmets I have used. My neighbor checked it out and liked it so much that he had me order one for him. Jafrum did a great job getting it to me, I ordered it Saturday night and had it on Thursday morning.


Berea, KY

Great Helmet

Comment: I purchased this helmet about three weeks ago. The fit was on spot and the look was great. No bobble-head. This helmet saved my life. I was run off the road and crashed my motorcycle. The helmet protected my head, no concusion and no blackout. It did the job and then some. I will buy this helmet again.



Gmax GM45S Helmet Review

Comment: Good fit, sizing chart was helpful, great quality for a great price

Mont W.


Nice Helmet

Comment: Awesome fit and looks. I was amazed how fast the shipping was to hawaii! Mahalo

john marume

pearl city, hawaii

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