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GMax GM78 Helmet - Solid
  • GMax GM78 Helmet - Solid - Matte Black
  • GMax GM78 Helmet - Solid - Titanium
  • GMax GM78 Helmet - Solid - Titanium

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Matte Black

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Video Reviews (2)

GMax GM78 Helmet - Solid Videos

Weight: 3.96 lbs

What's this?

GMAX GM78 Helmet


  • Lightweight thermo-plastic poly alloy shell
  • Integrated multi-function red LED rear light with three distinct settings: steady on, slow flash, and rapid flash
  • Adjustable Dual Exhaust Venting System at the top, side, and rear 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 fogging
  • Interior and styro designed for controlled air flow
  • Inner flip tint sun lens with anti-fog coating
  • Inner flip shield is easily raised or lowered with a lever located on the exterior of the helmet
  • Hard coated outer lens for longer lasting clear view
  • Large eye-port for improved range of vision
  • Removable, washable interior and cheek pads
  • Deluxe ear pockets for better fit and comfort
  • Built in speaker pockets for communication systems
  • Excellent shield sealing reduces unwanted air and noise
  • Optional wireless LED brake light (sold separately)

GMax Helmet Sizing

Size Head (cm)
XS 53 - 54
SM 55 - 56
MD 57 - 58
LG 59 - 60
XL 61 - 62
2XL 63 - 64
3XL 65 - 66
4XL 67 - 68

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

H Head Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Style RevZilla Item # Manufacturer Product # Availability
Matte Black / 2XL 869007 G178078 Out of Stock
Matte Black / 3XL 869008 G178079 Out of Stock
Matte Black / LG 869006 NG178076 Out of Stock
Matte Black / MD 869005 NG178075 Out of Stock
Matte Black / SM 869003 G178074 Out of Stock
Matte Black / XL 887633 NG178077 Out of Stock
Matte Black / XS 869004 G178073 Out of Stock
Titanium / 2XL 869019 NG178478 Out of Stock
Titanium / 3XL 869020 G178479 In Stock: Ships within 24 hours
Titanium / LG 869018 NG178476 Out of Stock
Titanium / MD 869017 NG178475 Only 1 Left: Ships within 24 hours
Titanium / SM 869016 G178474 Out of Stock
Titanium / XL 887635 NG178477 Out of Stock
Titanium / XS 869015 G178473 Only 1 Left: Ships within 24 hours


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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GMax GM78 Helmet - Solid 4.3 5 93 93
great product!! Definitely well worth the money and the light on the back is AWESOME.. not all too heavy and great fit February 9, 2016
Poor fit, unsafe. This helmet wobbles like crazy. I used a couple of time and never again. Note: I didn't bough a big size, just my size medium. Feels totally unsafe. Cheap, waste of money. The worst helmet I ever have, and I had a lot, from $ 200's value to $ 700's. It is OK saving money on finishing and looks but not on safety. Please, look for another brand. January 26, 2016
excellent value for money Just received my helmet and tested it out in the city limits and the hills. Noise level and wind buffeting in, and around the helmet at speed was very good for such a cheap helmet. Graphics are great too. Any one expecting spectacular sound proofing and an ultra light weight helmet, go buy a $600+ carbon fibre helmet. I got what I payed for, a well made helmet with great features that some other helmet brands don't have. This is my second Gmax helmet! January 26, 2016
Great entry-level helmet. This is my first helmet, new rider, put about 350 miles in with it. I wear eyeglasses with this helmet with no issues. The drop-down sun visor doesn't hit anything and it's a great feature. It does feel a bit flimsy but it's been solid thus far. Airflow seems great, I've been plenty cool even on 90+ degree days. With all the vents open, at 50+mph it is pretty loud. I use plug-style earbuds and that helps a lot. A couple times I've worn it for 2+ hours and I start to feel pressure on a couple parts of my head. Perhaps that's true of any full-face. Fixed by taking a short break. Overall I'm very happy with this helmet for the price. August 31, 2015
Overall, great helmet! I've had the helmet for about 2 weeks and i am loving it. I dont have any other helmet to compare too, but the main concern with me is that the air ventilation is not the greatest. This could be normal compar3d to other helmets, but to me it needs a little more air ventilation. The internal sun visor and red light are perfect for driving in the sun, and being more visble at night. Great buy, recommend to everyone. August 24, 2015
Good budget helmet This helmet does fit true to size. It is obviously heavier and louder than your higher end helmets, but compared to lower end cost helmets it is lighter and definitely quieter. There are a lot of vents and the internal visor is exceptional. The LED light on the back is a really neat feature for an entry helmet. The finish is perfect with no blemishes and the foam is very comfortable. August 3, 2015
Broke before use I liked the features of this helmet and it seamed pretty sturdy, but the sun visor mechanism broke before I got it out of the bag. July 23, 2015
Love this helmet!! Everything about this helmet is awesome I'm glad I picked this one August 31, 2015
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