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  1. #1
    Junior Member
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    Loose stem help?

    So I just bought a Cinelli Alter stem (1" threadless, 26mm). So I slap it on my Bianchi Pista.. tighten up the top screw, then the sides. Put the wheel in between my legs and try to move the bars around. With a little bit of muscle, I'm able to move the bars from side-to-side. Not good.

    I take the stem off, clean everything off with alcohol. Put it back on, tighten the top, then the sides again until my hand turns red and I can still move the bars. What could be the problem? Do I need some sort of shim or grip tape?

  2. #2
    Senior Member ijgrant's Avatar
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    What type of bars are you using?
    There is a possibility that your bar clamp area isn't 26mm. In that case, you might need to shim it.

  3. #3
    Junior Member
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    Nitto RB-021 Pursuit Bar with a 26.0mm clamp diameter. However, its not loose from the stem to the bars.. its loose where the stem attaches to the steerer tube.

  4. #4
    Pug lover! Dogs and bikes Tigerprawn's Avatar
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    It shouldn't be rock hard where if you put muscle its not gonna give. That's asking to get destroyed duing an accident.

    I got bounced into a parked car by the car beside me. Bars hit a side mirror and if my bars hadn't had some sort of give I think my crash woulda been much worse as well as my bike.

  5. #5
    Senior Member martinus's Avatar
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    Is it, in a stand when you put it "on" ... or on the ground ?

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    Bend the knees, watch the trees ... 5 $ please .

  6. #6
    . blickblocks's Avatar
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    The stem stack height might be so different that you have to throw a spacer on, probably under the stem.

  7. #7
    Junior Member
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    thanks for the replies all. i ended up making a shim out of a coke can. all is good now.

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