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  1. #1
    breathing helium
    Reputation: cocheese's Avatar
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    Help me set up a 1x5 geared bike...

    I'm sorry because I think this has been covered before, but the "1x5" search throws an error.

    I have a rigid 29er SS that I want to set up as a 1x5. It has a Chris King SS disc rear hub and H Bars. I am going to use XT cranks with a Salsa bash ring and N-Gear Jumpstop. For shifting I am going to use a Paul Thumbie and Dura Ace shifter combined with an XTR short cage derailleur. I will also have to run full length housing since the frame has no cable stops. I was thinking of the adhesive ones that you then use a zip tie to attached the cable.

    Assuming all of this looks ok, what brand of cogs should I use to fit on the King hub? Can I even fit 5 on there? Also, how do you go about limiting the derailleur and shifter to only 5 gears? Any ideas on the gear spacing? Still 11-34?

    Anything else that I am missing?

  2. #2
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
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    1 x 5?

    You might get 4 cogs on there, not 5.

    The limit screws limit how far the derailleur can move. Shifter...think about it for a moment.
    mtbtires.com
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  3. #3
    neutiquam erro
    Reputation: Chris130's Avatar
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    I dunno if this may be helpful, but it's an interesting discussion.

    Cheers, Chris

  4. #4
    breathing helium
    Reputation: cocheese's Avatar
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    Thanks shiggy and chris. Yes, those links are very helpful.

  5. #5
    mtbr member
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    Note on mtbr forums searches

    the forum search doesn't accept searches less than 4 characters, which is why you didn't get anything with 1x5

    A better option is to use google (or other search engine) to search the site. If you put the following in google:

    1x5 site:forums.mtbr.com

    you will get 1x5 results from the mtbr forums. Here is the full google search link if you want it
    http://www.google.com/search?as_q=+1...s=&safe=images

  6. #6
    Master of None
    Reputation: presslab's Avatar
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    With my XT derailleur the limit screws were not long enough to run 5 cogs. (9 speed.) The Saint derailleur was fine.

    Also, if you do what I did and take out every other cog on a LX 9 speed cassette, the shift ramps won't line up correctly any more. I was able to get the ramps pretty close by moving the cogs relative to one another on the freehub splines.

  7. #7
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
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    Quote Originally Posted by presslab
    With my XT derailleur the limit screws were not long enough to run 5 cogs. (9 speed.) The Saint derailleur was fine.

    Also, if you do what I did and take out every other cog on a LX 9 speed cassette, the shift ramps won't line up correctly any more. I was able to get the ramps pretty close by moving the cogs relative to one another on the freehub splines.
    1. you can put in a longer screw.

    2. Still shifts just fine without the ramps aligned "correctly."

    3. How did you do that? The cog/FH splines are keyed to prevent this.
    mtbtires.com
    The trouble with common sense is it is no longer common

  8. #8
    Master of None
    Reputation: presslab's Avatar
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    Quote Originally Posted by shiggy
    1. you can put in a longer screw.

    2. Still shifts just fine without the ramps aligned "correctly."

    3. How did you do that? The cog/FH splines are keyed to prevent this.
    You could put in a longer screw or you could take out the plastic thread locking plate and use blue Loctite.

    Now, I'm talking about 9 speed indexed shifting; I'm not sure what type of setup you have experience with. With friction shifters ramps aren't needed. It shifted ok without the ramps lined up, a little flakey. It shifts good with the ramps lined up as best I could. Not great, but pretty good.

    I opened up the "key" spline so I could index the cog any way I wanted to. On two of the cogs the teeth were divisible by 9 so moving the splines had no effect unfortunately.

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