Why hasn't anyone invented.....- Mtbr.com
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  1. #1
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    Why hasn't anyone invented.....

    Looking at the rear dropouts on the Kona Unit, i got to wondering...

    why hasn't anyone invented a Quick-release mounted track-end adapter, think about it, take a heavy-duty QR skewer and some machined steel track-ends, have them mounted on a plate that has "hooks" that line up with the chainstays and seatstays, have the whole thing held in place by the QR skewer, then mount the rear wheel in the track ends.....

    you'll have the best of both worlds, the convenience of a QR rear wheel, and the clean lines of a track-end equipped bike

    any reason why this hasn't been invented yet?

    a couple more brainstorm ideas....

    there'll need to be a spacer on the center of the QR skewer to support the frame arms of the bike (much like the hub does), and there should also be a bolt screwed into the deraileur hanger to add additional support to the bolt-on track ends
    Last edited by MacTech; 07-25-2005 at 08:56 AM.
    Brian, there's a message in my Alpha-Bits, it says "OOOOOOOO"
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    Gears, we don't need no steenking gears!

  2. #2
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    No. I've read it three times and still don't understand it.

    I did find myself wondering about having removable dropouts that stayed bolted to the wheel but left the disc brake (and rear mech if you had one) attatched to the frame, but I couldn't work out why I'd want to do that.

    Draw us a picture eh?

    Here's my sliding dropouts

    https://www.on-one.co.uk/forum/files...k/DSCN3709.jpg

  3. #3
    Nouveau Retrogrouch SuperModerator
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    I do not understand what you would be doing either. If anything is sounds more complicated and difficult to use.
    mtbtires.com
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  4. #4
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    okay, to clarify, i'm talking about creating a set of track-ends that mount into the rear wheel dropouts using a quick-release skewer

    essentially, bolt-on track ends, yes it will slightly lengthen wheelbase, but it would do away with the need for a tensioner
    Brian, there's a message in my Alpha-Bits, it says "OOOOOOOO"
    Peter, those are Cheerios

    Gears, we don't need no steenking gears!

  5. #5
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    I think I understand what you're saying ...

    Quote Originally Posted by MacTech
    Looking at the rear dropouts on the Kona Unit, i got to wondering...

    why hasn't anyone invented a Quick-release mounted track-end adapter, think about it, take a heavy-duty QR skewer and some machined steel track-ends, have them mounted on a plate that has "hooks" that line up with the chainstays and seatstays, have the whole thing held in place by the QR skewer, then mount the rear wheel in the track ends.....

    you'll have the best of both worlds, the convenience of a QR rear wheel, and the clean lines of a track-end equipped bike

    any reason why this hasn't been invented yet?

    a couple more brainstorm ideas....

    there'll need to be a spacer on the center of the QR skewer to support the frame arms of the bike (much like the hub does), and there should also be a bolt screwed into the deraileur hanger to add additional support to the bolt-on track ends
    But it doesn't sound like you've really thought it through. Forgive me if I'm mistaken, but it sounds like you want to run a skewer right in front of the trackends that holds them in place with the seat/chainstays. Sort of like sliding dropouts, but with trackend shape and a skewer joining them.

    If I've got your idea right, the skewer would go right through the wheel, just in front of the rear hub. Pardon my ignorance, but I think spokes may have an issue with this design. You can't run a skewer through a wheel. Sorry.

  6. #6
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    D'OH!, i knew that there was a reason it didn't exist.....

    nevermind, coffee and insomnia are a bad combination....
    Brian, there's a message in my Alpha-Bits, it says "OOOOOOOO"
    Peter, those are Cheerios

    Gears, we don't need no steenking gears!

  7. #7
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    The answer

    Quick release wouldn't work but a bolt on type would! Machinists, get busy!

  8. #8
    giddy up!
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    Quote Originally Posted by toothpuller
    Quick release wouldn't work but a bolt on type would! Machinists, get busy!
    The general idea is most likely flawed because the brake track probably won't line up.

    B
    www.thepathbikeshop.com

  9. #9
    Doesntplaywellwithmorons!
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    They Exist...

    They're called Kavik modular dropouts.
    I don't post to generate business for myself or make like I'm better than sliced bread

  10. #10
    Steamroller
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    He forgot to metion...

    .......His other idea is the spokeless wheel. The weight weenies will go crazy for that one.
    Two Wheeled and Too Big

  11. #11
    dirty hippy mountainbiker
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    I don't understand the aversion to the chain tensioner. I have had success with a soulcraft convert. A friend has had success with the Singlator. It seems lighter and easier to use even than an eccentric BB. (No padre that wasn't a troll, and I may be sorely mistaken.) But for a conversion it seems to leave very little lacking. Perhapse it's not right for all frames...

    -M
    Mike Henderson, Dirty Hippy Mountain Biker and part owner of Jet Lites.

  12. #12
    dirty hippy mountainbiker
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    I don't understand the aversion to the chain tensioner. I have had success with a soulcraft convert. A friend has had success with the Singlator. It seems lighter and easier to use even than an eccentric BB. (No Padre that wasn't a troll, and I may be sorely mistaken.) But for a conversion it seems to leave very little lacking. Perhapse it's not right for all frames...

    -M
    Mike Henderson, Dirty Hippy Mountain Biker and part owner of Jet Lites.

  13. #13
    you go ahead
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    2 Words:

    Elastic Chain

  14. #14
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    Cause tensionsers don't look cool.

  15. #15
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    Quote Originally Posted by the_eleven
    Cause tensionsers don't look cool.
    agreed, part of the appeal of SS to me at least, is the simple, *CLEAN* lines of the drivetrain, one cog, one chainring, and a chain, can't get much simpler than that....

    a tensioner, aside from looking "Deraileur-esque", adds a layer of complexity (albeit an extremely minor one) to the drivetrain that personally, i could do without

    that said, my initial aversion to using a tensioner (based purely on cosmetics) is fading, no it doesn't look as clean as a SS with track ends or horizontal dropouts, but it doesn't look *too* bad either....

    just my opinion, take it with a grain of salt....
    Brian, there's a message in my Alpha-Bits, it says "OOOOOOOO"
    Peter, those are Cheerios

    Gears, we don't need no steenking gears!

  16. #16
    dirty hippy mountainbiker
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    I agree fully. (well almost fully: looks shmooks (yes, those are big words from a guy with a custom painted bike))

    How about a line of tensioner decals with SS slogans like: "One F&*ing speed" or "This in NOT a Deriaileur" Or maybe a custom painted one to match your bike.


    -M
    Mike Henderson, Dirty Hippy Mountain Biker and part owner of Jet Lites.

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