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PostPosted: Thu Jun 28, 2012 2:46 am 
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Joined: Tue Aug 17, 2010 4:20 pm
Posts: 268
Location: Pittsburgh, PA
I have a cannondale supersix and here is my issue. I cut my 3t Doric down and left about 10cm that goes into the down tube more than the min line. My issue is when I pedal on the flats say about 25 to 30mph I get a very annoying tick sound. This started after I cut my seatpost not sure if that is the problem. When I climb no tick in or out of the saddle just seems to be at a fast cadence not sure if it is the saddle or something else. I would appreciate any solutions to this issue. Or anything to try to narrow it down. I already tried difference skewers no change.


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PostPosted: Thu Jun 28, 2012 2:49 am 
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Joined: Sun Sep 23, 2007 5:06 am
Posts: 516
Seat rail clamps are frequent offenders for me.


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PostPosted: Thu Jun 28, 2012 2:53 am 
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Joined: Tue Aug 17, 2010 4:20 pm
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Location: Pittsburgh, PA
What's the solution should I try carbon paste on the seatpost?


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PostPosted: Thu Jun 28, 2012 2:57 am 
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I take all the pieces apart from the clamp, clean them and apply carbon paste to the rails and the interface between the rail support and the post. That interface wants to slip with your weight is leveraged off back end, causing squeak. Higher torque may be all is required. I do the paste to just be done with it.


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PostPosted: Thu Jun 28, 2012 3:17 am 
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Joined: Sat Jun 13, 2009 4:02 am
Posts: 1980
Location: NoVA/DC
if the post is able to rock slightly in the frame, it will tick. make sure you have sufficient torque. also, grease clamp bolt and the inside of the clamp, and grip paste the post.


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PostPosted: Thu Jun 28, 2012 3:23 am 
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Posts: 268
Location: Pittsburgh, PA
My woodman seat clamp says 5NM max does that sound like enough torque?


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PostPosted: Thu Jun 28, 2012 3:39 am 
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Joined: Sat Jun 13, 2009 4:02 am
Posts: 1980
Location: NoVA/DC
yup


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PostPosted: Thu Jun 28, 2012 12:48 pm 
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Joined: Mon Feb 05, 2007 5:39 am
Posts: 756
Location: Winnipeg Canada
Funny.. I have a 2010 Supersix HiMod and had the EXACT issue.. have an FSA K Force post (uncut) but I would get this huge banging sound.. it sounded like a valve stem banging against the rim bed.. I went nuts trying to isolate it...I beleive someone on here gave me the solution.. get some FSA compound paste, rub it onthe post where you insert it... put a small amount on yor seatpost bolt, and clamp it down to spec.... ticking gone instantly.... it happened again earlier this season, I just reapplied some paste.... Funny we both have the same frame and same issue.. I never had that with my former Pinarello carbon frames...


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PostPosted: Thu Jun 28, 2012 1:22 pm 
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Joined: Fri Oct 07, 2011 2:08 pm
Posts: 1365
Get some clear coat and put it on the post and parts that need to be clamped . You can build it up so that you have a nice tight fit . Then use carbon paste and you will not have to tighten so much and seatpost will be more secure as well .


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PostPosted: Thu Jun 28, 2012 7:40 pm 
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Joined: Fri May 18, 2012 7:11 pm
Posts: 296
Location: FL
i have used some stuff called Monster Grip for my paddle boards and surf boards. It's a spray that's almost like a clearcoat but has a texture that is really rough when it cures. Might be a more stable alternative to carbon paste.


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PostPosted: Thu Jun 28, 2012 8:35 pm 
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Joined: Tue Feb 07, 2012 7:17 pm
Posts: 520
find someone to switch seatpost/saddle with so you can help diagnose the problem.

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It has the H2 geo......one step racier than a hybrid bike


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PostPosted: Mon Jul 02, 2012 8:11 pm 
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Joined: Tue Aug 17, 2010 4:20 pm
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Location: Pittsburgh, PA
Thanks for all your input carbon paste has done the trick.


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