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Gmax GM78S SPC Solid Snowmobile Helmet


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Video Reviews
Hey whats up guys this is Reuben with Competition Accessories and welcome to our video review of the Gmax GM78 and the GM78s which is the same helmet but with more accessories for you snow guys. Looking at the one here in front of me this is called the fire-strike graphic and we have the GM78 available in multiple different graphics and colors, you can jump on our website to check those out. Bang for the buck you get a lot of features compared to some other brand of helmets in the same price range. The street version of this helmet is under a 150 bucks. You can jump on there and check out all our current prices for this helmet. The snow version which comes with a little bit more accessories is a little more expensive. First things first ventilation on this helmet, you get a ton of vents, most of them are closeable. You have a chin vent here you can open and close with a simple slider. Thats going to direct air up and onto the face shield to keep your vision clear and give you some good air flow. You have intake vents at the top here again you can open and close these. On the back of the helmet you have some exhaust vents that are also closeable. A lot of other helmets out there are made to leave their rear vents open all the time, so thats nice you can close the four vents up if you want to. On the bottom of the helmet you do have some static ports and these are always open. Now one thing that is really unique to Gmax is they incorporate this rear light. You have three modes you can cycle between. The first mode is always on, the second mode is going to be a slow blink, and the option is a rapid blink. That is really going to help keep you visible especially at night you dont want to get rear ended or for people not to see you, you can leave that flashing and people are definitely see you coming. You can also link this up with your brakes and they have a wifi kit that links it wireless to your brakes/brake switch on your bike. This will actually light up when you hit the brakes and obviously with a helmet that is a high place to have a light shine and hopefully it will get drivers to notice you. Now the shell of the GM78 is a light weight polycarbonate shell, in fact if I throw it on the scale here I say light weight compare to other polycarbonate shells with the internal drop down sun visor, but it is still 3.95 lbs. For a helmet under 200 dollars its definitely a great value. You have a UV protected shield here, it is easy to open and close. You also have an internal drop down sun visor. There is a slider at the top here you can slide back and forth to deploy or retract the sun visor. Nice convenient location easy to operate especially with gloves on. Be careful, you dont want to be too rough with this because it is a thin plastic that pushes the shield to pull up or down, but it drops the shield down nice and low and you can see its actually down far enough so its not in your line of sight, a lot of times they don't drop down far enough and that can kind of be in your vision. This comes down far enough that its not in your way and it is not hitting your nose either. Also it is far enough forward so if you wear glasses you will still be able to have them on while the visor is deployed. Now you have a rubber breathe deflector here as well. That is going to help keep your breathe off the faceshield again helping it not to fog. The internal visor that is drop down is also coated with an anti-fog coating. You can remove the interior on the Gmax helmets. There are a few snaps on the cheek pads and speaker pockets if you are going to run a communication system. You can remove the interior real quick and easy. If you ever need to swap out cheek pads or something like just cleaning the helmet up you can easily pull the internal pads out and clean it up. You can see the crown liner has quite a bit of mesh material on it as well, thats going to allow all that venting built in the helmet to actually reach your skin and keep you comfortable. Looking at the interior here you can see that the EPS liner which is that white foam throughout the helmet here. That is what is going to absorb impact in a crash so if you go down the poly carbonate shell is going to spread the impact over the broadest area of the shell/helmet. The internal liner is going to takeover and crush or absorb the impact so your head doesn't have too. Also it has all the ventilation holes so when you are riding that air has somewhere to go inside the helmet and throughout the helmet out the back. You can see they have a little bit of foam in here as well so your head is not hitting up against that, and the rest of the foam is built in the crown liner to keep you comfortable. I wanted to quickly show you the snow version helmet that we have here. For you guys riding snowmobiles or riding in really cold conditions wear fog on the face shield is an issue the snow version actually comes with an electric heated shield. It comes with the power leads you will need to hook up to your sleds battery. You have your port here on the side and you can see it is a dual pane shield. This insulates from the inside to the outside so your not having fogging issues. He external shield here is anti scratch coated so your going to get a lot of useful life out of this shield. Another thing you will notice is there is this really large breathe deflector built in on this helmet. You can remove this easily and then it has a nice comfortable foam padding that will sit right on your nose so its not uncomfortable. That is really going to do a good job keeping your nose and breathe away from the shield, along with keeping you warm and preventing more fogging issues. On the bottom you have a removable chin curtain and that will seal up the base of the helmet a little bit better so your not getting cold air coming up in the helmet. This helmet also has the drop down internal visor. Check the GM78 and the GM78 snow version on our website at Competition Accessories is an unbelievable value for what you get. The snow version also does have the brake light. Dont forget you can earn up to 5% comp a cash back on future purchases. You can also click the link in the upper right hand corner to subscribe to our youtube channel to view all our latest product reviews and video reviews. We have great free shipping deals, hassle free exchange program , and no restocking fees. Thanks for watching and we will see you next time.
Information and Details about the Gmax GM78S SPC Solid Snowmobile Helmet
made by Gmax
GMAX GM78S SPC Full Face Helmets can be used as a street or snow helmet, making it extremely versatile. The GM78S Helmet is a full face helmet with an internal flip lens. All GMAX Helmets are lightweight to reduce neck strain and showcase top-quality finishes. They offer superior venting and removable/washable padding. Outer shells are hard coated for a durable, long life and have custom designed graphics covered in clear coat. GMAX GM78S Helmets are offered in Black with an optional Electric Shield. Whichever option you choose, GMAX will put your head in the best helmet you've ever worn!

  • Lightweight D.O.T. 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
  • Optional wireless LED Brake Light available
  • 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
  • Inner flip shield is easily raised or lowered with a lever located on the exterior of the helmet
  • State of the art anti-fog double lens shield with anti-scratch 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
  • Snap-in snowmobile chin curtain for added warmth
  • Snap-in maximum seal breath guard reduces fogging
  • Excellent shield sealing reduces cold air and noise
  • Optional Electric Shield available

  • Gmax GM78S SPC Solid Snowmobile Helmet Product Reviews
    Review this Product  for a chance to win a $100 gift card.

    Below are more Gmax Reviews from our online customers.
    Hopefully they can help you find the right item and make the best buying decision.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    GMax54S faceshield - Robert G   FL Recommended by Reviewer: Yes
    Pros: Sturdy quality, great on sunny days and super easy to change.
    Cons: Looks way too cool. Prone to get envious looks.

    This Shield is one of my favorites. It will take a beating before I have to change it out for a new one. Very simple unlocking mechanism. And protection from the sun is great Bonus is has the lowest price on this shield

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    havent installed yet - JMM   MT Recommended by Reviewer: Yes
    Pros: [None]
    Cons: [None]

    havent installed yet

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    On the money. - JMM   MT Recommended by Reviewer: Yes
    Pros: Perfect fit.
    Cons: non

    Easy, exact replacement fit.

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    Great option Great price - Tawd   KS Recommended by Reviewer: Yes
    Pros: MAKES ME VERY VISIBLE Easy to install
    Cons: none

    This was a great addition to my GM54 helmet. It helps make me as visible as possible, and on a motorcycle, you can never be too visible

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    great look - vapexpr   TN Recommended by Reviewer: Yes
    Pros: fits right, looks great
    Cons: slight internal reflection

    Sometimes riding into the sun the dark smoke drop down shield isn't enough. With the tinted screen and drop down visor I can ride into the sun without an issue. Its just the right amount of tint for daytime riding when the sun is high. There is a slight internal reflection that will show your nose and cheeks, but not enough to bother me. This shield is a little too tinted for dark conditions so be prepared to switch back to the clear.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    Helmet Shield - GJ Chuck   CO Recommended by Reviewer: Yes
    Pros: Great sun protection. It is just dark enough without causing any sight interfrence or distortion.
    Cons: None

    I replaced the clear shield on my GM54 with this silver shield and am much impressed with the fact that it helps on blocking the sun and also still allows for great vision to the front and sides. I highly recommend this for improved daytime riding.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    Gmax tinted shields. - GMAX shields.   NY Recommended by Reviewer: Yes
    Pros: Easily switched out, no waves or blurr in plastic
    Cons: NONE

    Bought a blue iridium and a smoked, I have only used the blue so far this year. I just love this shield blue. Even though I bought the GMAX 54 modular helmet with the drop down internal sun shield I still like the look of a smoked or colored external visor. Priced right and excellent customer service. What a great company

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    Brake light - Lettieehn   CA Recommended by Reviewer: Yes
    Pros: I love the brake light on my helmet it is so neat and works really good.
    Cons: None

    The light lets people know I am stopping so they don't hit me on my bike.

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    Great Idea to Add a Brake Light - Matt B   Recommended by Reviewer: Yes
    Pros: Great Idea, Better Visibility, Works Great
    Cons: [None]

    This is a great idea I feel safer knowing that I can be seen better at night and during the day. Only wish the light was brighter so it could be seen better during the day. Also wish just the light was sold separately. I have 2 GMax helmets and wanted both to have the light synced to the brakes but I didn't need a second brake light kit because you can sync 2 helmet lights to one brake light kit.

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    Great Feature - Roger   Recommended by Reviewer: Yes
    Pros: Easy to install, low price
    Cons: [None]

    This was a great upgrade to the basic light unit in my GM54 helmet....very easy install, just make sure you know what each of the 3 lines coming off your brake llight are ...tiny splice, attach the included wire crimps, I zip-tied it to a bracket under the seat of my 650r, entire install about 15 minute's. And it works.....Install the light unit into your helmet and now you are ready to ride, safetly at night People are impressed and it does catch that stray drivers eye As always FANTASTIC prices , fast shipping. Great addition for an already great idea

    This review is for Gmax GM78 Solid Helmets
    Helmet GMAX - Jeg   SC Recommended by Reviewer: Yes
    Pros: great value,super fit
    Cons: none

    I bought this helmet prior to a week tour through Arizona and southern Utah. Never had a day when my head was uncomfortable with respect to heat even with daytime highs in the upper 90's.The drop down sun visor was fantastic I would highly recommend this helmet along with the helpful staff at Competition Acessories.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    Replacement Face Shield - Mike   OR Recommended by Reviewer: Yes
    Pros: Good fit
    Cons: None

    Easy to switch out, no issues. Works like the original.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    good - rider   WY Recommended by Reviewer: Yes
    Pros: fit as advertized
    Cons: none

    As shields go, it is pretty good. clear, fit as advertised.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    A necessary accessory - Thomas   TX Recommended by Reviewer: Yes
    Pros: Easy switch
    Cons: [None]

    I was thinking the slide shield in the GM54 would be just the ticket. It does work great, but in the heat of summer here two shields radiating sunlight isn't a real good idea. This smoke shield switches out with the clear one very quickly and is just the ticket for hot sunny days.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    Gmax GM54 Shield - Vince WA   WA Recommended by Reviewer: Yes
    Pros: fits good
    Cons: [None]

    Smoked tint with no distortion I've had with other replacement shields

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    great accessory... - andermle   VA Recommended by Reviewer: Yes
    Pros: Bright even in daylight, price
    Cons: Install instructions could be better

    Light does what it is supposed to do. Bright enough even in daylight, I have people ask about it and the Gmax54 helmet all the time. I thought it was a gimmick but took a bud's advise and got it when I purchased the helmet. Good advise. The first week I had it, we had fog every morning and I had a guy at a stoplight say every helmet should have a light like that. I think it is worth the money if it catches the attention of just one person who isn't paying full attention. It's a great addition to a great helmet.

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    Works great - Cmay   NM Recommended by Reviewer: Yes
    Pros: It works
    Cons: instructions

    The instructions leave a lot to be desired. The one thing that I found most useful was a test light so I knew which wires to clamp onto. It took about 30 min to install with some trial and error. For the price you cant really complain too much, right Overall I am pretty happy with it.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    Stickerman - Stickerman   OH Recommended by Reviewer: Yes
    Pros: snaps on easily
    Cons: na

    Snaps on off easily and quickly. Perfect.

    This review is for Gmax GM78 Solid Helmets
    High feature low cost helmet - Mike in AZ   AZ Recommended by Reviewer: Yes
    Pros: venting, sun visor, rear light, style, noise reduction
    Cons: sun visor not dark enough, no air conditioning

    I previously owned a GMAX GM68S. It was a nice comfortable helmet with decent venting and had the rear light for night time visiblity. It was noisy enough that I wore ear plugs, but not deafening like my Fly Trekker. It had a bit more room around the temples to better allow for sun glasses, unlike the Trekker which was snapping the arms off sun glasses left and right. I still went through a fair amount of glasses with the GM68S, but not nearly as many as with the Trekker. But still having sweaty steamy foam lined sunglasses against my face was no fun. I purchased the 68S as a close-out and the only one they had in my size was black. Not my first choice as it's not the best for visibility and it just absorbed the Phoenix sun. But for the close-out price I couldn't complain. I recently stumbled while carrying it, and it hit the pavement HARD, bouncing several times, breaking off a vent, cracking the top vent housing, marring the face shield and rendering it pretty much useless. Now I told you all this so I could compare it to my new GM78.I was able to find the 78 in white YAY. That helps with visibility, and doesn't seem to get AS hot as the black helmet, but Phoenix riding is hot regardless. The venting seems to be pretty good so far. At hiway speeds it seems to stay a bit cooler than the 68S. Some one please invent a helmet with AC I ride with the main shield open at speeds up to about 35mph. Faster than that, wind come around the sun visor and bothers my eyes. The sun visor is a really nice feature. It saves money on constanly replacing broken sunglasses, keeps sweaty steamy glasses off my face, and alliviates the hassle of putting them on & off as lighting conditions change. I just wish there was a slightly darker sun visor. It's not quite as dark as my sun glasses, and I'm contemplating getting a smoked main shield to compensate for the blindingly bright Phoenix sun. Although I don't really want to carry a second shield, changing them out on the 78 is really simple and an improvement over the 68S. The 78 has the rear light for night time visibility. I don't care who this is gimmicky with both th 68S and the 78, I've had drivers at stop lights tell me they thought it was cool and it really got their attention, I always set it to fast blink so apparently it's working and helping keep me alive. The 78 is MUCH quieter than my old 68S. Even at hiway speeds, I'm a bit on the fence as to wether or not I still need earplugs. I do still wear them on the hiway, but this helmet is pretty quiet without them.Bottom line This is a good helmet with many nice features at an affordable price. If you live out west, allow time for it to arrive. Unlike Brian in MD, mine took quite a while to arrive. He's a lot closer to them than I am though. Comp Acc does have the best price I could find though, so I take it in stride.

    This review is for Gmax GM54 and GM78 Helmet Replacement Shields
    A bit darker than expected - Jerry   UT Recommended by Reviewer: Yes
    Pros: good addition to the helmet
    Cons: it's as dark as my sunglasses

    While I didn't expect it to be as dark as it is, it does do a good job of blocking the glare on those overly bright days. I bought the blue iridium anticipating a slight tint, but these are as dark athe drop down shadevisor built into the GMAX GM54. It was easy to attach and change from the original clear shield and visibility is not distorted in any noticeable way. I would recommend it, but just beware that the pictures don't depict just how dark it is and in some jurisdictions it may be illegal to wear after sunset.

    This review is for Gmax GM78 Solid Helmets
    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.

    This review is for Gmax GM78 Solid Helmets
    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.

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    Gmax led brake light for GM64 - Max   IN Recommended by Reviewer: Yes
    Pros: Like the way it looks with brakes
    Cons: difficult to install not very good instructions

    Bought the brake light kit to go in my GM54 helmet. I thought all I had to do was install the transmitter and I would be good to go using my existing helmet light. WRONG You have to remove the old light and install the light that comes with the kit. Took a little figuring out how to remove the old one and fishing the wires up to the power source. Also the splices are junk. I ended up striping the wire and soldering the connections. Much better. But all in all I still like this light. I do have to reset it every time it sits very long which is really not a problem and it probably saves the batteries. I would recommend it I only gave it three stars because of the splice connector and poor directions. The unit is fine otherwise.

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    Nifty device for the price - Steve   AR Recommended by Reviewer: Yes
    Pros: Inexpensive
    Cons: Not bright enough, installation may have you going to church to ask forgiveness

    I have a love-hate relationship with this piece. First, don't bother reading the instructions. You'll have just as much success looking at the factory installed light and seeing how to remove it and install the identical looking replacement. It's straight forward enough.The problem is the two tiny screws that hold it in the helmet. You will need a jewelers screwdriver phillips. The screws are recessed with access thru very small openings. They come out easily enough, although getting them all the way out of the opening can be tough. That is your first clue that re-installing them will be a challenge. Getting the two screws thru the opening is not difficult. But then, they fall into a cavernous space that allows them to twist and turn in every direction but into the threaded holes. It will try your patience. One of mine went in on the second attempt. The other one fought me every step of the way. Stop. Have a cold drink. You'll feel like you need a beer, but alcohol won't help your dexterity. Then try again. It will eventually fall into the hole and you'll wonder why it didn't happen 45 minutes ago.Now, to the installation of the sending module. Where are the instructions Oh, there aren't any. Just enough to tell you which wire is ground and which one goes to the brake light wire. Now you're on your own. The unit is small and can mount almost anywhere on a big touring bike. That might not be the case on a sport bike. You need a small place within a few inches of a brake light wiring harness. Obviously, they don't know what kind of bike you are putting this on. So, they can't tell you where the harness is, what color of wire to look for, or anything else. You either need a wiring diagram of your bike, or a voltmeter and the knowledge to use it. Once you find the brake light wire and ground, splice into those wires with the included taps. Now where is the double sided tape or Velcro to secure the module. Once again, Oh, that's not included. You've got to be kidding me. A one inch square pice of double sided tape is not included OK, never mind, I'm sure I have some laying around here somewhere.Now it's installed. Let's try it. Hey, look at that. It really works. Just like the stock light, it only has two little LED's. Easily seen at night. In the daytime, not so much. But, it was less that 30 bucks, so it's probably with it.

    This review is for Gmax LED Brake Light Kit for GM54 - GM67 - GM78 Helmets
    helmet light - fiferg   Recommended by Reviewer: No
    Pros: Like the concept and the added visiblity they would add
    Cons: Can' get them to work with bike brakes

    Followed instructions and tried the brakes and guess what no light on helmet, installation instructions really weak and provide no guide to help. I hat a lot of detail but no trouble shooting provided at all.

    This review is for Gmax GM78 Solid Helmets
    Wouldn't buy this helmet again - Greg B   Recommended by Reviewer: No
    Pros: Cheap price
    Cons: Inner shield slider mechanism extremly fragile. J&M speaker required alot of modifications.

    I bought this helmet because I had a GM17s for years and really liked it. When I got the first GM78, the shield slider broke off in my hand. I got another one and the slider was already broken and loose in the box. Competition sent me another slider at no charge, thanks to competition acc. After wearing the helmet for 1 hour the liner seam in the top front of the helmet was extremely uncomfortable. There is very little padding in the liner. I've installed my GM17 liner and the helmet is ok now. J&M speaker installation required extensive modification to the inner part of the helmet, plus I had to modify the cheek pads to keep them from blocking the speakers. I bought 2 of these helmets, one for me and one for my wife , an xl and a xxl, when I had the helmets apart I noticed on the Styrofoam that they had xxl stamps in both helmets, apparently GMAX sizes them by changing cheek pads and liners, interesting. I would not buy this helmet again..I guess you get what you pay for in this instance.

    Sizing Chart & Specs for the Gmax GM78S SPC Solid Snowmobile Helmet
    GMAX Helmet Sizing Chart


    Helmet size
    Metric cm




    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

    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.
    Part Number Status for Gmax GM78S SPC Solid Snowmobile Helmet
    Options SKU Our Price Availability
    X-Small, Black GM-78SN-XS-BK $127.45 Currently Not Available for Order
    X-Small, Black - Electric Shield GM-78SN-XS-BKEL $202.46 Currently Not Available for Order
    Small, Black GM-78SN-S-BK $134.95 Currently Not Available for Order
    Small, Black - Electric Shield GM-78SN-S-BKEL $202.46 Currently Not Available for Order
    Medium, Black GM-78SN-M-BK $134.95 Currently Not Available for Order
    Medium, Black - Electric Shield GM-78SN-M-BKEL $202.46 Currently Not Available for Order
    Large, Black GM-78SN-L-BK $134.95 Currently Not Available for Order
    Large, Black - Electric Shield GM-78SN-L-BKEL $183.95 Currently Not Available for Order
    X-Large, Black GM-78SN-XL-BK $134.95 Currently Not Available for Order
    X-Large, Black - Electric Shield GM-78SN-XL-BKEL $183.95 Currently Not Available for Order
    2X-Large, Black GM-78SN-2X-BK $134.95 Currently Not Available for Order
    2X-Large, Black - Electric Shield GM-78SN-2X-BKEL $202.46 Currently Not Available for Order
    3X-Large, Black GM-78SN-3X-BK $134.95 Currently Not Available for Order
    3X-Large, Black - Electric Shield GM-78SN-3X-BKEL $183.95 Currently Not Available for Order

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    Gmax GM78S SPC Solid Snowmobile Helmet - Black
    Gmax GM78S SPC Solid Snowmobile Helmet - Black - Electric Shield
    Black - Electric Shield