GMAX GM11D Dualsport Helmet

Discussion in 'Equipment' started by rhino_adv, Feb 18, 2013.

  1. rhino_adv

    rhino_adv Gnarly Adventurer

    Joined:
    Apr 30, 2010
    Oddometer:
    632
    Location:
    central Illinois (Bloomington)
    Anyone have any experiance with this helmet?
    http://www.gmaxhelmet.com/GM11D-SO.html



    I have looked at the FLY Trekker, AFX FX39 and the MSR Xpedition. The shield on all (3) of these helmets when in the up position are right at my eye leavel. The shield on the GMAX is up out of the way.

    Any input positive or negitive will be welcome.


    thanks, Brad
    #1
  2. mookybird

    mookybird Gramps

    Joined:
    Nov 4, 2011
    Oddometer:
    213
    Location:
    Olympic Peninsula, Washington State
    I used one on a 5000 mile jaunt on an unfaired dirt bike. I chose it over the others for the same reason you mention about the faceshield retracting all the way up out of the line of sight. It flows a bunch of air and was as comfortable as could be expected in temps over 100.

    The tab you grab to raise and lower the faceshield takes a little getting used to, it is on the lower left corner of the shield and most others are a little more forward which improves the leverage you have to raise or lower the shield. This isn't a deal breaker and you quickly adjust but it is a little different.

    I didn't have any issues with the helmet lifting in the airstream, on an unfaired bike as I lower the shield at around 60 there is a noticable decrease in wind resistance when your looking forward but you get a little head steer when you look left or right, I don't know if that makes sense but the lateral left right steer seems to come more from the faceshield being lowered than the bill/visor.

    I think for the money it's a good choice, I bought mine online and it's too large, I'm sure that exaggerates the left /right headsteer factor. I have an Arai Profile in large that fits perfectly, my Gmax is XL and just a little too loose, Before this riding season I'm buying another in large and hope that I don't have any issues with helmet shape/pressure spot on my forehead.

    I like the bill/visor on dirt helmets low on the horizon. I thought the Gmax was better than most in that department but I still did a small mod to lower it way down where I like it. "see pic"

    [​IMG]

    [​IMG]
    #2
  3. roundtripping

    roundtripping Adventourist

    Joined:
    Feb 21, 2009
    Oddometer:
    1,706
    Location:
    Lake Elsinore, CA
    I have a size M and the shell is ridiculously large. Otherwise it's nice for the money.
    #3
  4. TossingLead

    TossingLead Adventurer

    Joined:
    Jul 15, 2011
    Oddometer:
    63
    Location:
    DFW, Texas
    I've had mine for about 8 Months, Replace the inside side pads, (they have different sizes available) fits good now.
    Bought it to use in the summer heat and it does breath well.
    Yes the shield is out of sight when up.
    Also has a notch that holds the shield just open for more airflow.
    You can also use goggles with shield UP or DOWN
    It has a larger opening so Over The Glasses goggles fit.
    There are some other accessories for it on there web site, I think they sell as an snowmobile helmet also.
    For the money I can't say any thing bad about it.
    Will be wearing it more when it warms back up.
    #4
  5. mookybird

    mookybird Gramps

    Joined:
    Nov 4, 2011
    Oddometer:
    213
    Location:
    Olympic Peninsula, Washington State
    Thanks for the suggestion on the different sized pads, I'll look into it. gramps
    #5
  6. Ghostyman

    Ghostyman Been here awhile

    Joined:
    Sep 5, 2011
    Oddometer:
    259
    Location:
    LA face with the Oakland booty
    +1 on different cheek pads. My head measurement said I should be wearing a Medium. With the cheek pads in, I'm not comfortable in an XL. I have replacements on the way and really hope they transform the helmet.

    Stock cheek pads are 15mm, smallest replacements that I found online are 10mm.
    #6
  7. andrewhtf

    andrewhtf Been here awhile

    Joined:
    Sep 2, 2010
    Oddometer:
    130
    I have one. My head is arai size M but on this gmax, i had to wear size S.
    Riding anywhere above 60mph, this thing catches the wind, big time.
    Oh by the way, it is freaking heavy.

    Suffice to say it is not my primary helmet. And it will never be.
    #7
  8. XT_Driftwood

    XT_Driftwood Been here awhile

    Joined:
    May 16, 2007
    Oddometer:
    639
    Location:
    Upstate NY
    I have one and I'm happy with it. But... my previous ADV-style helmet was a Simpson GS3. Compared to the Simpson, the GMAX is lighter, has a smaller shell, has a far better field of vision, and has better ventilation.

    I tried on both the GMAX and the Fly Trekker. I initially liked the fit of the Fly better but bought the GMAX because it was a few bucks less and I'm a cheapskate. Both helmets were light years better than what I was used to.
    #8
  9. frog13

    frog13 Long timer

    Joined:
    Feb 10, 2007
    Oddometer:
    1,381
    Location:
    SW Ohio
    I also have the GM-11.....good helmet....it is not heavy!......I should have bought the size Large though,the XL is a bit to loose. Have some patience,drill some TINY holes in the visor to cut down on the wind drag.
    #9
  10. Ghostyman

    Ghostyman Been here awhile

    Joined:
    Sep 5, 2011
    Oddometer:
    259
    Location:
    LA face with the Oakland booty
    My replacement cheek pads arrived today and did completely transform the helmet. Both the Med and XL are much more comfortable and will be usable now. Just a matter of figuring out if I can use the Med with a balaclava or if I need to get a Large.

    I will also add that I really like the helmet and as long as it fits comfortably, it's a great deal.
    #10
  11. andrewhtf

    andrewhtf Been here awhile

    Joined:
    Sep 2, 2010
    Oddometer:
    130
    The gmax uses a single shell size across the whole size range. You may swap the pads and liners to get your preferred fit.
    #11
  12. Ghostyman

    Ghostyman Been here awhile

    Joined:
    Sep 5, 2011
    Oddometer:
    259
    Location:
    LA face with the Oakland booty
    Good call. I took a look at the Med and XL and they appear to have the same shell like you said. The liners are interchangeable but the only difference seems to be in the circumference; there's no difference in padding thickness. The difference in size seems to just be from the amount of foam in the upper part of the helmet. The difference is visibly noticeable when comparing them side by side with the liners out.

    The Med came with 20mm cheek pads, the XL came with 15mm pads. I had to buy 10mm pads and then both helmets fit identically in the cheek area.
    #12
  13. rhino_adv

    rhino_adv Gnarly Adventurer

    Joined:
    Apr 30, 2010
    Oddometer:
    632
    Location:
    central Illinois (Bloomington)
    Thanks for all the input!
    The size chart puts me right between a medium and a large. I ordered a size large in hopes it will allow the use of my prescription glasses without too much trouble. The biggest selling point was the ability to change cheek pads to adjust for proper fit.


    Brad
    #13
  14. mass-klr

    mass-klr Been here awhile

    Joined:
    Aug 18, 2012
    Oddometer:
    194
    Location:
    Central Mass
    Just got one of these.
    Fit great and I like the fact that you can open the shield out of the way enabling you the use of goggles.

    [​IMG]
    [​IMG]
    #14
  15. climbamt

    climbamt Been here awhile

    Joined:
    Jun 11, 2012
    Oddometer:
    206
    Location:
    Baltimore, MD
    Just took mine out for it's first ride on a VERY windy day. I was surprised, below 65 MPH it had minimal wind issues. At 65+ I could feel it moving around slightly. I thought it was a little too visible in the Hi-Vis color so I removed the visor and mouthguard and Plasti-Dipped them. I like it a lot better.

    [​IMG]

    [​IMG]

    I went with the medium, it seems a little snug, but I am sure it will fit fine after it breaks in.

    ~climbamt
    #15