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Builder's Corner Restoration and preservation. Keep them running in perfect shape. What size is your bottom bracket?

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Old November 1st, 2011, 7:05 PM   #1
WVEddy
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Default slippery seat post clamp

So this is an odd one. My seat post clamp was sliding up and popping off the top of the seat tube after a few minutes of riding. you can image the effect of this, seat slides down pretty quick. No amount of tightening would stop it. the clamp is a thomson. I was able to score the inside of the clamp with a screw driver to create enough contact to make it stop popping off. the paint is new, with several coats of clear. should i rough up the paint on the seat collar to give the clamp a little more bite?

Open to ideas.
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Old November 2nd, 2011, 4:58 AM   #2
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The seat clamp, doesn't this have a bolt which runs through a loop in the seat tube to stop the clamp riding up ?
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Old November 4th, 2011, 11:57 AM   #3
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No bolt hole.
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Old November 10th, 2011, 10:23 AM   #4
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Quote:
Originally Posted by WVEddy View Post
No bolt hole.

Thats odd ?
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Old November 11th, 2011, 8:30 PM   #5
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Default seat post tab

Thats odd ?

not really, not all Fats came with the tab on the seat tube. Depends upon the model and age I believe
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Old November 12th, 2011, 10:34 PM   #6
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Quote:
Originally Posted by rick View Post
Thats odd ?

not really, not all Fats came with the tab on the seat tube. Depends upon the model and age I believe
Yes, so no tab on my frame. Should I sand the clear coat on the frame to rough it up a little. It seems ok now by putting groves on the inside of the seat collar.
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Old November 13th, 2011, 4:16 PM   #7
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you learn something new every day ! all four if my Fats have the tab, (88-91) are the frames without tab later frames then ?
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Old November 13th, 2011, 7:06 PM   #8
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Default seat tab?

I just did a quick check of a dozen or so bikes in the garage and I would guess that the tab is soemwhat related to age, although my 94 Wicked Lite has a tab and a 94 Yo does not. Perhaps Scott could shed some light on the issue?
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Old November 30th, 2011, 5:47 PM   #9
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The grooves in the seat collar seem to be working, but i think a single turn with some 100grit will fix the problem for good.
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