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  1. #51
    Very Active Member robhowen's Avatar
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    Pete, goodness do I know what you mean!!! Thanks for sharing this as I had no idea this existed.
    Rob
    2015 RT-Ltd SE6 and F3S SE6, both with a number of commercial add-ons plus my own tweaks.

  2. #52
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    Quote Originally Posted by robhowen View Post
    Pete, goodness do I know what you mean!!! Thanks for sharing this as I had no idea this existed.
    Rob
    What are you referring to Rob? The unique helmet?

    2014 RTL Platinum & 2014 RTL Cognac
    Northern Utah in summer; Yuma, AZ in winter.

  3. #53
    Very Active Member Lew L's Avatar
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    Thumbs up Air flow

    Quote Originally Posted by UtahPete View Post
    My helmet is a white HJC-IS Max II. (BTW, I used this opportunity to wash the liner and pads for the first time in 3 years - they were pretty grungy).

    I opened up the inside of the helmet (i.e. removed the liner and pads) and blew out the 6 air holes with my compressor. There was no blockage in the ports (holes). I decided not to modify them in any way. Attached are some pics of the helmet inner with and without liner. Should be able to see the six holes, which are in two channels running front to back. Also, the liner has slots in it corresponding to the channels.

    So, it is what it is; plenty of venting for a standard, popular helmet, but still inadequate for hot desert riding.





    Pete,Pete, Pete,

    I removed the liner in my helmet------- and the front holes didn't line up with the vent on top of the helmet!!! Not even close and no flow. The ones in the back were perfect. A few moments with a dremel tool getting them properly lined up will make a big difference. I used my air nozzle with a 3" very thin extension. Poked around with it to see ( feel) for air flow and this led to removing enough foam allow good air flow but not weaken the eps foam.
    Kaos----- Gone but not forgotten.

    2014 RTS in circuit yellow, farkeling addiction down to once every few months.ECU FLASH IS GREAT.

  4. #54
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    Quote Originally Posted by Lew L View Post
    I removed the liner in my helmet------- and the front holes didn't line up with the vent on top of the helmet!!! Not even close and no flow. The ones in the back were perfect. A few moments with a dremel tool getting them properly lined up will make a big difference. I used my air nozzle with a 3" very thin extension. Poked around with it to see ( feel) for air flow and this led to removing enough foam allow good air flow but not weaken the eps foam.
    Lew, did you see my helmet pics? I removed the liner to check out the vent holes. There are 6 of them.

    I put the nozzle from my air compressor into each one to blow out anything (bugs?) that may have become lodged in there. There was no debris, but I did feel the compressed air coming through on the outside of the vents.

    So, I'm assuming no blockage at this point and just trying to get more air forced through the channels; hence the scoop on the front.

    2014 RTL Platinum & 2014 RTL Cognac
    Northern Utah in summer; Yuma, AZ in winter.

  5. #55
    Very Active Member Lew L's Avatar
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    Quote Originally Posted by UtahPete View Post
    Lew, did you see my helmet pics? I removed the liner to check out the vent holes. There are 6 of them.

    I put the nozzle from my air compressor into each one to blow out anything (bugs?) that may have become lodged in there. There was no debris, but I did feel the compressed air coming through on the outside of the vents.

    So, I'm assuming no blockage at this point and just trying to get more air forced through the channels; hence the scoop on the front.

    Hi Pete, I hate to assume anything but try this----- take a small, thin ( smaller than a pencil ) probe and gently push it into the two front vent holes--AND look for it in the open top vent. Mine DID NOT show through but now they do. If the holes from the shell and the EPS liner don't line up ----- air flow WILL be restricted alot . I expect my modified vent to work much better. And it still closes if I want it to.

    This got me motivated to inspect my wifes helmet. The top vent on her helmet had NO holes for the top ( A fake vent). I did modify the chin bar vent and it will work much better.
    Kaos----- Gone but not forgotten.

    2014 RTS in circuit yellow, farkeling addiction down to once every few months.ECU FLASH IS GREAT.

  6. #56
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    Quote Originally Posted by Lew L View Post
    Hi Pete, I hate to assume anything but try this----- take a small, thin ( smaller than a pencil ) probe and gently push it into the two front vent holes--AND look for it in the open top vent. Mine DID NOT show through but now they do. If the holes from the shell and the EPS liner don't line up ----- air flow WILL be restricted alot . I expect my modified vent to work much better. And it still closes if I want it to. This got me motivated to inspect my wifes helmet. The top vent on her helmet had NO holes for the top ( A fake vent). I did modify the chin bar vent and it will work much better.
    Will do. Thanks for the tip. Now, where can I get some pipe cleaners ...?

    2014 RTL Platinum & 2014 RTL Cognac
    Northern Utah in summer; Yuma, AZ in winter.

  7. #57
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    Here is a new-to-me helmet from Klim that in addition to providing better crash protection also claims full-head ventilation, using a different type of material for the impact liner.

    https://www.motorcyclenews.com/news/...enture-helmet/

    For now it seems to be available only as an adventure riding helmet. Here's a link to Revzilla's website page. https://www.revzilla.com/common-trea...-sets-it-apart

    2014 RTL Platinum & 2014 RTL Cognac
    Northern Utah in summer; Yuma, AZ in winter.

  8. #58
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    Quote Originally Posted by UtahPete View Post
    Will do. Thanks for the tip. Now, where can I get some pipe cleaners ...?
    Most any drug store used to have them. If you can't find them local, Amazon.com has them. Hobby and craft shops should also have them.

  9. #59
    Very Active Member robhowen's Avatar
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    Yes, the unique "cooled" $600 helmet.
    Rob

    Quote Originally Posted by UtahPete View Post
    What are you referring to Rob? The unique helmet?
    2015 RT-Ltd SE6 and F3S SE6, both with a number of commercial add-ons plus my own tweaks.

  10. #60
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    Quote Originally Posted by UtahPete View Post
    Here is a new-to-me helmet from Klim that in addition to providing better crash protection also claims full-head ventilation, using a different type of material for the impact liner.

    https://www.motorcyclenews.com/news/...enture-helmet/

    For now it seems to be available only as an adventure riding helmet. Here's a link to Revzilla's website page. https://www.revzilla.com/common-trea...-sets-it-apart
    Just saw a similar technology come up in bicycle helmets - think bontrager..?

  11. #61
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    Here's another invention, also from India

    International Business Times, India: Bengaluru techie designs AC helmets to make rider comfortable.
    https://www.ibtimes.co.in/bengaluru-...ortable-805221

    2014 RTL Platinum & 2014 RTL Cognac
    Northern Utah in summer; Yuma, AZ in winter.

  12. #62
    Very Active Member Lew L's Avatar
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    Quote Originally Posted by Lew L View Post
    Hi Pete, I hate to assume anything but try this----- take a small, thin ( smaller than a pencil ) probe and gently push it into the two front vent holes--AND look for it in the open top vent. Mine DID NOT show through but now they do. If the holes from the shell and the EPS liner don't line up ----- air flow WILL be restricted alot . I expect my modified vent to work much better. And it still closes if I want it to.

    This got me motivated to inspect my wifes helmet. The top vent on her helmet had NO holes for the top ( A fake vent). I did modify the chin bar vent and it will work much better.
    Hi Pete,
    At the Nor Cal rally today REALLY noticed how much better my helmet moved air since I made sure the holes in the liner and the top vent/scoop lined up. Whatever it takes---- get them to line up.
    Lew L
    Kaos----- Gone but not forgotten.

    2014 RTS in circuit yellow, farkeling addiction down to once every few months.ECU FLASH IS GREAT.

  13. #63
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    Quote Originally Posted by Lew L View Post
    Hi Pete,
    At the Nor Cal rally today REALLY noticed how much better my helmet moved air since I made sure the holes in the liner and the top vent/scoop lined up. Whatever it takes---- get them to line up.
    Lew L
    Here's the prototype. Formed out of plastic and attached with 3M double-sided tape. Not sure it's big enough, but will try it out on a trip next week to New Mexico.

    Helmet scoops 1.jpgHelmet scoops 2.jpg

    2014 RTL Platinum & 2014 RTL Cognac
    Northern Utah in summer; Yuma, AZ in winter.

  14. #64
    Very Active Member Lew L's Avatar
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    Looks good Pete!!
    Kaos----- Gone but not forgotten.

    2014 RTS in circuit yellow, farkeling addiction down to once every few months.ECU FLASH IS GREAT.

  15. #65
    Very Active Member Grandpot's Avatar
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    Pete, that looks pretty darn good. Can't wait to hear how it works. You may have started a movement!
    2011 RTS
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    Experience is recognizing the same mistake every time you make it!

  16. #66
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    I tried out the helmet today and didn't feel much improved airflow. Tomorrow I leave for a 1500 mile trip and I want to fine tune the helmet scoop. So, I did. Here is the result. I'm not going to know if it makes a difference until I'm on the road tomorrow, so no more fine-tuning until I return.

    Enlarged scoop.jpg

    2014 RTL Platinum & 2014 RTL Cognac
    Northern Utah in summer; Yuma, AZ in winter.

  17. #67
    Active Member seaweed's Avatar
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    After reading through this thread I decided to check my helmet vents. I found a smashed bug in one of the front vents. I removed most of it with a pair of tweezers and then blew the rest out with compressed air. Thanks Pete for making me look at my helmet.

    Dean Secord AKA seaweed
    Veteran: U.S. Air Force
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