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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 06-06-11, 11:11 PM   #1
kaitanuva
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Whats the tool for this?

http://www.flickr.com/photos/[email protected]/5806849571/

I recently got into an accident and it twisted my handle bars so that its not longer aligned to the wheel. So i need to take the handlebars out but I need the tool for "this" bolt thingie.
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Old 06-06-11, 11:16 PM   #2
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If you just twisted the handlebars, all you need to do is loosen the nut on top of the stem a few turns. Tap it down. This will loosen the clamp. Twist away.

The steerer stem bolts don't need top be touched. They hold the fork in place, not the handle bar. Post more pics of the handlebar. I'm going by what I can see.
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Old 06-06-11, 11:17 PM   #3
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That nut is used to set / lock the preload on the headset and should not be touched unless the headset needs adjustment... the hex head bolt or allen head bolt at the top of the stem is what needs to be loosened to adjust the stem.

You only want to back it out 6 turns and then tap it with a hammer to release the wedge nut that keeps the quill in place, straighten the bars, and then re-tighten the top bolt.
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Old 06-07-11, 03:08 AM   #4
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If you undo the top bolt too much, the wedge at the bottom will drop off and you will have to fish it out. I find that 3/4 turns is sufficient.
Before you hit the bolt with a metal hammer, put some hardwood on top of the bolt/stem to prevent damage.
Whilst you are there, put a very light smear of grease (white lithium bike grease) around the the stem where it contacts the metal of the steerer tube , to prevent seizing.
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Old 06-07-11, 02:28 PM   #5
kaitanuva
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full view
http://www.flickr.com/photos/6381033...n/photostream/

alignment

http://www.flickr.com/photos/6381033...n/photostream/
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Old 06-07-11, 02:31 PM   #6
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It's simple. Just loosen the Allen bolt on the top of the stem, tap it down, align & tighten.
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Old 06-07-11, 03:41 PM   #7
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thanks guys
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