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  1. #1
    Two wheels are better
    Reputation: beardedstealth's Avatar
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    Stinky bottoming out...

    Or so I thought.

    Once in awhile when I would over-jump and land to flat or take a large drop I would hear a metallic clank sound. So, I presumed that I was bottoming out my shock. I did everything to try and set the DHX Air 5.0 up correctly so it wouldn't bottom out. Bottom out adjustment, boost valve pressure, main spring pressure, etc. Nothing I did got rid of the periodic "bottoming out". At one point I had the boost valve at its max PSI of 200 and still it wasn't enough. Now I am only 165 pound rider, so you can imagine that I was getting pretty frustrated with the fact that I couldn't take a large drop without hearing the clank.

    Luckily I got to chatting with Kenny B at Rage and he mentioned letting all the air out of the shock and seeing what was going on during the full suspension travel. Well, sure enough I wasn't bottoming my shock out at all. Instead the rear triangle was hitting the seat post clamp as you can see in the picture (you can also see in the photo the amount of travel left when the seat clamp is hit). I felt relieved and pissed all at the same time. Relieved that it wasn't the shock, but pissed I had spent so many hours tweaking and never thought to do the simple thing.

    Anyway, I spun the clamp around and was still getting a little contact, so I have had to turn the clamp a little clockwise to make sure everything is clear. Seems to be good to go, but haven't gotten to field test just yet. So, is this a fluke? Bad design? Or just a "teachable moment"?
    Attached Thumbnails Attached Thumbnails Stinky bottoming out...-dsc_4587_v1.jpg  

    Stinky bottoming out...-dsc_4588_v1.jpg  

    Stinky bottoming out...-dsc_4589_v1.jpg  

    Stinky bottoming out...-dsc_4590_v1.jpg  

    Stinky bottoming out...-dsc_4591_v1.jpg  

    "There are two kinds of people in this world that go around beardless—boys and women, and I am neither one"

  2. #2
    Pivotal figure
    Reputation: kenbentit's Avatar
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    Glad you got the mystery figured out at least. Getting seat tube clearance is always a problem with long travel bikes, you'd be surprised how close the tire/swingarm gets during full compression. You may be able to find a lower profile clamp to get better clearance although the QR does take up a bit of room...
    Desert Sunset Calls/Upward, Pain, Perseverance/Welcome Solitude

  3. #3
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    Reputation: kubo's Avatar
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    Is that the stock shock size?
    I did a quick search for curiousity and it looks like on some stinkys they have the eye to eye's @ 8.5 but the DHX air is at 7.8... ?

  4. #4
    Two wheels are better
    Reputation: beardedstealth's Avatar
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    Quote Originally Posted by kubo
    Is that the stock shock size?
    I did a quick search for curiousity and it looks like on some stinkys they have the eye to eye's @ 8.5 but the DHX air is at 7.8... ?
    It is the stock shock that came on the bike from Kona. I haven't actually measured it, I just presumed it was 8.5 x 2.5 based on the specs. Now I'll have to check it out to be sure.
    "There are two kinds of people in this world that go around beardless—boys and women, and I am neither one"

  5. #5
    PMP,TAN,LAUNDRY
    Reputation: azdog's Avatar
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    Buddies stinky used to do that all the time. Used to think he was bottoming out but looked at the seat collar and it was all scratched up. Just be careful that no cables get routed through there! Just saw that they were might want to think about moving them to the outside.
    Bender to AZDog: I'm not the best person to give advice on not riding!

  6. #6
    sixsixtysix
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    Stinky's have always done that with a QR seat collar. My old Transition Dirtbags used to do the same thing. (Same basic frame design). It basically boils down to not being able to use a QR collar. Transition used to ship their Dirtbags with a low profile bolt on collar that allowed their rockers to clear it.

  7. #7
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    Reputation: cesslinger's Avatar
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    Quote Originally Posted by sixsixtysix
    Stinky's have always done that with a QR seat collar. My old Transition Dirtbags used to do the same thing. (Same basic frame design). It basically boils down to not being able to use a QR collar. Transition used to ship their Dirtbags with a low profile bolt on collar that allowed their rockers to clear it.
    Mine doesn't do that.

    The only problem that I have is an invitation to a dude only foam party is stuck in my rear wheel Will Kona warranty my junk?

  8. #8
    sixsixtysix
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    Quote Originally Posted by cesslinger
    Mine doesn't do that.

    The only problem that I have is an invitation to a dude only foam party is stuck in my rear wheel Will Kona warranty my junk?
    We also rebuilt your shock so that it doesn't fully bottom, those couple mm probably keeps the rockers from smashing into the collar.

  9. #9
    Two wheels are better
    Reputation: beardedstealth's Avatar
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    Quote Originally Posted by sixsixtysix
    Stinky's have always done that with a QR seat collar. My old Transition Dirtbags used to do the same thing. (Same basic frame design). It basically boils down to not being able to use a QR collar. Transition used to ship their Dirtbags with a low profile bolt on collar that allowed their rockers to clear it.
    A low profile bolt on collar would definitely clear things up, I just hate to get rid of QR. Maybe its time to get a Gravity Dropper and then I won't care about the QR.
    "There are two kinds of people in this world that go around beardless—boys and women, and I am neither one"

  10. #10
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    My old stinky (01) and my friends 04 do that with a qr seat collar.
    The fix was to rotate the seat collar until it didn't hit, just like you did.
    Still works the same and no more clunk
    my bike was second hand and actually had grooves worn in the linkage because of that.

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