Lightweight DOT approved thermo-plastic ploy alloy shell
New integrated multi-function red LED rear light with three distinct settings: steady on, slow flash, and rapid flash
GMax 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 fogging
Interior and styro designed for controlled air flow
New inner flip tint sun lens with the best anti-fog coating available today
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 available
Review this Product for a chance to win a $100 gift card.
Price Doesn't Match Quality - Jason in SD
Recommended by Reviewer: Yes
Pros: stylish, venting, visibility, adequate noise management, rear light, value
Cons: Sizing is tight, not sold on the mesh chin curtain
I searched high and low for a new helmet under 200. First criteria was a white helmet for visibility purposes and my Triumph T-Bird is white as well. Second, I wanted major noise reduction improvement vs my open faced Fulmer which was not hard to do and so far the GM78 has exceeded my expectations. Outside of those 2 things, the visibility is great can't say that for all full faced helmets, the venting is nice, the rear light is good to have for riding at night, and the sun shade is nice too but I'm not sure how much I'll use it since I were good riding glasses. The jury is still out on the mesh chin curtain but time will tell. The only real con is the sizing, most brands I fit in to a L or XL, and the Gmax sizing charts says XL for me. No way. I had to step up to a XXL for comfort. I certainly recommend this helmet for all it offers but make sure you buy 1 size larger.
Nice helmet but fit was odd - Brian in MD
Recommended by Reviewer: Yes
Pros: Good overall quality, excellent internal sun visor, value
Cons: peculiar fit front to back
I needed to replace my 3yr old HJC IS-16, which had served me well but was starting to show some wear. I had bought my wife a GMAX68S last year for the occasional rides on the back, and was so impressed with that model that I decided to go for a GMAX for myself this time. I was excited to see this new GM78 model with the internal visor - one of the features I loved about my HJC. So I ordered one in solid white Compacc had the lowest price of any online dealer, btw and it arrived quickly. I ordered the small, which is the same size I wear in other helmets I also have a Sparx and as soon as I tried it on I knew something was not right. The helmet fit well side to side and at the cheeks, but the padding in front was pressing so hard into my forehead that it was downright painful. I wore it for about 15 minutes hoping it would resolve but no dice. Interestingly, my wife's GM68S is an XS, and although tight it actually fit me without any discomfort. My personal fit issues notwithstanding, this is a high quality helmet - especially at under 120. It looks to have great venting, the main visor is outstanding, and the internal sun visor is just as nice as my HJC - it comes down low enough so that you don't see the bottom edge - an issue I've read about in other helmets with internal visors. It felt about average weight to me. Since I didn't ride with it, I can't comment on noise control. Lastly, the GMAX 78 continues with the built-in LED on the back of the helmet, same as the 68S. I find this to be a nifty feature for added rider visibilty, even it it is considered by some to be a bit gimmicky. Overall, if the fit works for you, it's a great helmet - and recommended.
Gmax GM78 Helmet Review at Competition Accessories |
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| Gmax GM78 Helmet Review at Competition Accessories |
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| GMAX Helmet Sizing Chart | | | | Circumference | Helmet size | | Metric cm | Inches | Letter | Number | | 47-48cm | 18-7/8" - 19-1/4"
| YS | 6 - 6/18
| | 49-50cm | 19-11/16" - 20-1/16"
| Yth S/M, YM
| 6-1/4 - 6-3/8
| | 51-52cm | 20-7/16" - 20-7/8"
| Yth L/XL, YL, XXS
| 6-1/2 - 6-5/8
| | 53-54cm | 21-1/4" - 21-5/8"
| X-Small | 6-3/4 - 6-7/8
| | 55-56cm | 22" - 22-7/16"
| Small | 7 - 7-1/8
| | 57-58cm | 22-13/16" - 23-1/4"
| Medium | 7-1/4 - 7-3/8
| | 59-60cm | 23-5/8" - 24" | Large | 7-1/2 - 7-5/8
| | 61-62cm | 24-3/8" - 24-13/16" | X-Large | 7-3/4 - 7-7/8
| | 63-64cm | 25-3/16" - 25-5/8"
| 2X-Large | 8 - 8-1/8
| | 65-66cm | 26" - 26-3/8"
| 3X-Large | 8-1/4 - 8-3/8
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The sizing information is provided by the manufacturer and does not guarantee a perfect fit. However, we are happy to assist you with any needed exchanges.
| Options |
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SKU |
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Retail Price |
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Our Price |
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Availability |
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X-Small, Flat Black
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GM-GM78-XS-FBK |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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X-Small, White
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GM-GM78-XS-WH |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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X-Small, Titanium
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GM-GM78-XS-TITA |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Small, Flat Black
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GM-GM78-S-FBK |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Small, White
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GM-GM78-S-WH |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Small, Titanium
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GM-GM78-S-TITA |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Medium, Flat Black
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GM-GM78-M-FBK |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Medium, White
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GM-GM78-M-WH |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Medium, Titanium
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GM-GM78-M-TITA |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Large, Flat Black
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GM-GM78-L-FBK |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Large, White
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GM-GM78-L-WH |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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Large, Titanium
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GM-GM78-L-TITA |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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X-Large, Flat Black
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GM-GM78-XL-FBK |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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X-Large, White
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GM-GM78-XL-WH |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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X-Large, Titanium
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GM-GM78-XL-TITA |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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2X-Large, Flat Black
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GM-GM78-2X-FBK |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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2X-Large, White
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GM-GM78-2X-WH |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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2X-Large, Titanium
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GM-GM78-2X-TITA |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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3X-Large, Flat Black
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GM-GM78-3X-FBK |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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3X-Large, White
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GM-GM78-3X-WH |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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3X-Large, Titanium
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GM-GM78-3X-TITA |
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$139.95 |
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$109.98 |
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Usually Ships in 1-5 Business Days
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