GMAX GM54 Modular Helmet

Hi-Vis Yellow
Hi-Vis Yellow

$161.96 - $170.96
10% Off - Save up to $17.99

  • Description
  • 2 Reviews
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  • Sizing Chart
Description Item #GMX0019

The GM54 is an evolution of the industry-leading GMAX GM44 modular helmet. The new modular resign allows the "flip-jaw" to rotate further back on the crown of the helmet compared to most other modular helmets. The further rotation of the flip-jaw not only increases the user's line-of-sight when in the raised position, but it also lessens the user's fatigue by maintaining an even distribution of weight across the helmet.

  • New inner flip tint sun lens, with the best anti-fogging coating available today.
  • Inner flip shield is easily raised or lowered with a lever located on the exterior of the helmet.
  • Distortion-free clear single lens shield.
  • Integrated multi-function red LED rear light.
    • Optional L.E.D. Brake Light Kit: Transmits your bike's brake light wirelessly and activates L.E.D. light on helmet sold separately.
  • Push-to-open jaw mechanism is effortlessly raised and lowered with one hand.
  • Lightweight D.O.T. approved thermo-plastic polycarbonate alloy shell.
  • Excellent shield sealing reduces unwanted air and noise to the wearer.
  • SPC top front vents / interiors and styro designed for controlled air flow.
  • Vents for interior and styro designed for controlled airflow.
  • GMAX "D.E.V.S." adjustable "Dual Exhaust Venting System" top, side and rear venting reduces fogging and sweating by allowing hot air to escape from the mouth area and top of head.
  • Adjustable chin vent directs air upward across the inside of the shield to help reduce or eliminate fogging.
  • Large eyeport for improved range of vision.
  • DuPont CoolMax comfort liner and cheek pads move the moisture away from your body and the fabric dries quickly.
  • Removable cheek pads for custom fitting with optional sized cheek pads available for purchase (sold separately).
  • Deluxe ear pockets for better fit and comfort with built-in speaker pockets for communication systems.
  • Soft padded chin strap.
  • Painted shell with high quality clear coat finish.
  • Soft helmet bag included.

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2 Reviews
4.5 out of 5 stars
5 Star   1 4 Star   1 3 Star   0 2 Star   0 1 Star   0
Verified Purchaser
Fort Worth, TX,
Comfort   Performance   Sizing - true to size?   Style   Weight  
Gmax Modular Helmet

I ordered the Gmax modular helmet and am very pleased with it, I haven't been out riding yet because I am still working on upgrades for my bike, but I am sure it will be as comfortable as it was when I tried it on.

Indiana, USA
Comfort   Performance   Sizing - true to size?   Style   Weight  
I got this helmit in pearl white

I am about ready to get my third gm54. The one I have now, I bought while waiting for my new bike( bike was to be white). It ended up being silver. I like the helmit so much that I'll get the Titanium one this spring.

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Ask a Question

There have been no questions asked about the GMAX GM54 Modular Helmet.

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SizeHead CircumferenceHat Size
X-Small 21 1/4 - 21 5/8" (54 - 55 cm) 6 3/4
Small 22 - 22 7/16" (56 - 57 cm) 7 - 7 1/8
Medium 22 13/16 - 23 1/4" (58 - 59 cm) 7 1/4 - 7 3/8
Large 23 1/4 - 23 3/4" (59.1 - 60.3 cm) 7 3/8 - 7 5/8
X-Large 24 8/8 - 24 13/16" (62 - 63 cm) 7 3/4 - 7 7/8
2X-Large 25 3/16 - 25 5/8" (64 - 65 cm) 8 - 8 1/8
3X-Large 26 - 26 3/8" (66 - 67 cm) 8 1/4 - 8 3/8
SizeHead CircumferenceHat Size
Youth Small 19 11/16 - 20 3/16" (50 - 51 cm) 6 1/4 - 6 3/8
Youth Small/Medium 19 11/16 - 20 3/16" (50 - 51 cm) 6 1/4 - 6 3/8
Youth Medium 20 7/16 - 20 7/8" (52 - 53 cm) 6 1/2 - 6 5/8
Youth Large/X-Large 20 7/16 - 20 7/8" (52 - 53 cm) 6 1/2 - 6 5/8
Youth Large 21" (53.5 cm) 6 11/16


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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