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  1. #1
    Senior Member djkenny's Avatar
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    Nexus Internal 8 speed Issues - Spinning and not going in gear

    Hello
    My 2010 Breezer Uptown 8 will randomly begin having issues catching a tooth or something. I will try to shift and the cranks will spin, not catch a gear, or take a few seconds to catch the gear in less dramatic rides.

    Sometimes... I swear, it shifts quite well. Sometimes it is only during a full ride it will be touchy the whole time and other times it will shift very normal. Odd?

    I know the shop will likely just take care of the issue, whatever adjustments or repairs are needed since it is only 6 months max old... but I wonder what the issue is?

    Thanks,
    Kenny

  2. #2
    Senior Member wahoonc's Avatar
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    Quote Originally Posted by djkenny View Post
    Hello
    My 2010 Breezer Uptown 8 will randomly begin having issues catching a tooth or something. I will try to shift and the cranks will spin, not catch a gear, or take a few seconds to catch the gear in less dramatic rides.

    Sometimes... I swear, it shifts quite well. Sometimes it is only during a full ride it will be touchy the whole time and other times it will shift very normal. Odd?

    I know the shop will likely just take care of the issue, whatever adjustments or repairs are needed since it is only 6 months max old... but I wonder what the issue is?

    Thanks,
    Kenny
    My first guess would be cable adjustment. New cables will stretch and need periodic adjustment for a few months. The second guess would be insufficient internal lubrication. Hopefully your shop will get you fixed up and rolling. I do most of my own maintenance, even on my IGH hubs. I prefer oil bath and have converted several of my out of warranty hubs to oil rather than grease.

    Aaron
    Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(

    ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.

    "Cycling should be a way of life, not a hobby.
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    "Steel: nearly a thousand years of metallurgical development
    Aluminum: barely a hundred
    Which one would you rather have under your butt at 30mph?"
    _krazygluon

  3. #3
    Senior Member
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    Adjust the shifter to fourth gear.
    Turn your bike upside down.
    Look at the rear hub, there is a green dot on the hub and one on the shifter -
    in fourth gear they should line up. If not, adjust the cable take up until they do line up.
    ride long & prosper

  4. #4
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    Probably just a simple cable adjustment.

  5. #5
    Senior Member djkenny's Avatar
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    Thanks!! I will take a peak at the green dot dealio too! But yeah, it is rougher to shift as well... might need some lube too!

  6. #6
    Unobtanium-Based Lifeform calamarichris's Avatar
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    Quote Originally Posted by martianone View Post
    Adjust the shifter to fourth gear.
    Turn your bike upside down.
    Look at the rear hub, there is a green dot on the hub and one on the shifter -
    in fourth gear they should line up. If not, adjust the cable take up until they do line up.
    Awesome, thank you! Where/how do we lubricate these babies?
    After about ~2,000 miles, mine isn't quite as bad off as the OP's, but it's still getting a little notchy when shifting in dodgy situations.

  7. #7
    Humvee of bikes =Worksman Nightshade's Avatar
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    My preferred bicycle brand is.......WORKSMAN CYCLES
    I dislike clipless pedals on any city bike since I feel they are unsafe.

    Originally Posted by krazygluon
    Steel: nearly a thousand years of metallurgical development
    Aluminum: barely a hundred, which one would you rather have under your butt at 30mph?

  8. #8
    Unobtanium-Based Lifeform calamarichris's Avatar
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    Thanks.
    Nuts. Seeing so many Shimano lube products that come in the little bottles with the pointed applicator-tip made me think there was a simple hole or someplace where I could squirt it in, like a zerk-fitting.
    But according to Sheldon, it's fully sealed. Nuts. Hopefully the fine-tuning/adjustment will be enough.

  9. #9
    Humvee of bikes =Worksman Nightshade's Avatar
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    Quote Originally Posted by calamarichris View Post
    But according to Sheldon, it's fully sealed. Nuts. Hopefully the fine-tuning/adjustment will be enough.

    When I first got my 7spd IGH I had trouble with 4 & 5 gears and didn't understand how to adjust it. So off to my friendly LBS where the mechanic took one look at it and started fiddling with the cable at the shifter while we chatted. Next I knew he said.....It's should be ok now.

    Huh? I didn't see him do anything!

    So I ask him what'd you do? He said your hub was a bit out so I just lined up the marks. What marks says I? These yellow marks here says he. So I paid him $5 for adjusting the cable and $5 for the lesson on the hub that I got!
    My preferred bicycle brand is.......WORKSMAN CYCLES
    I dislike clipless pedals on any city bike since I feel they are unsafe.

    Originally Posted by krazygluon
    Steel: nearly a thousand years of metallurgical development
    Aluminum: barely a hundred, which one would you rather have under your butt at 30mph?

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