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Why can't I remove the bars from the stem?

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Why can't I remove the bars from the stem?

Old 05-30-16, 05:47 PM
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Why can't I remove the bars from the stem?

'85ish Colango Super. A friend asked me to put the panto stem back on in preparation for selling.

I can get the bars to move about 1/8" to the side. Did someone force these bars into this stem? Lots of galling to the left of the 3TTT.


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Old 05-30-16, 05:52 PM
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Put a caliper on the bars. They could be 26.4 bars in a 26 stem or 26 bars in a 25.4 stem. Push a screwdriver sideways into the stem opening to provide a bit more room.
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Old 05-30-16, 05:54 PM
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Going to have to be a chisel, that gap is pretty wide. I was hoping I was missing something....
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Old 05-30-16, 05:59 PM
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Save the bar from further damage. Crank that stem open, pull the bars out then throw that stem away.
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Old 05-30-16, 08:11 PM
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Have a pair of 3TTT bars downstairs that came on an early 70s Italian rarity. Pity, same scoring marks because someone tried to shove them into a stem too small, but, like, kept on going. I kid you not, 4" wide of nothing but galling on one side of bar center. Absurd what some people do ...

I think @3speedslow gave sage advice here. Don't necessarily need to mangle the stem, but wedge open enough to safely remove the bars...
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Old 05-30-16, 09:00 PM
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I've prised open a clamp like that with two flat blade screwdrivers and two thin dimes in the gap. Didn't hurt the clamp any, and didn't even need a third hand.
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Old 05-30-16, 10:15 PM
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Jan Heine has a good technique for dealing with tight stem clamps described here. I've done this successfully with a stem that has a wide clamp, which makes it otherwise difficult to maneuver around a handlebar.

Let us know if this works for you.
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Old 05-30-16, 10:40 PM
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Originally Posted by PeregrineA1
'85ish Colango Super. A friend asked me to put the panto stem back on in preparation for selling.

I can get the bars to move about 1/8" to the side. Did someone force these bars into this stem? Lots of galling to the left of the 3TTT.


Use 2 flat blade screw drivers one at each side...JM2C's
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Old 05-31-16, 06:31 AM
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Hey! Cool 1985 Trek 620!!!!
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Old 05-31-16, 08:27 AM
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I like the Jan Heine technique. Nice and compact.

The '85 620 is about to get a bit of service and polish. We are setting up a second house for Mrs. P's new job, so we need two bikes with racks. The Surly LHT is going north and the 620 is staying south.
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Old 05-31-16, 08:42 AM
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Originally Posted by PeregrineA1

The '85 620 is about to get a bit of service and polish. We are setting up a second house for Mrs. P's new job, so we need two bikes with racks. The Surly LHT is going north and the 620 is staying south.
Nice... I was out on my 620 yesterday... You know, whenever I'm on one bike, I'm riding along thinking "this is my favorite bike." Then I get on another bike and think, "no, this is my favorite bike." Then I get out on another one and think... "this is my favorite bike." And it cycles through til I get back to the first one and think "this is my favorite bike."

I really really really like my Trek 620, I hope you guys do as well!
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