Got a ticking sound thinking seatpost - what's the solution?

Discuss light weight issues concerning road bikes & parts.
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G6612
Posts: 283
Joined: Tue Aug 17, 2010 4:20 pm
Location: Pittsburgh, PA

by G6612

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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Arky
Posts: 520
Joined: Sun Sep 23, 2007 5:06 am

by Arky

Seat rail clamps are frequent offenders for me.

by Weenie


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G6612
Posts: 283
Joined: Tue Aug 17, 2010 4:20 pm
Location: Pittsburgh, PA

by G6612

What's the solution should I try carbon paste on the seatpost?

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Arky
Posts: 520
Joined: Sun Sep 23, 2007 5:06 am

by Arky

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.

thisisatest
Shop Owner
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Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

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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G6612
Posts: 283
Joined: Tue Aug 17, 2010 4:20 pm
Location: Pittsburgh, PA

by G6612

My woodman seat clamp says 5NM max does that sound like enough torque?

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

yup

ParisCarbon
Posts: 804
Joined: Mon Feb 05, 2007 5:39 am
Location: Winnipeg Canada

by ParisCarbon

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...

artray
Posts: 1365
Joined: Fri Oct 07, 2011 2:08 pm

by artray

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 .

NWSAlpine
Posts: 296
Joined: Fri May 18, 2012 7:11 pm
Location: FL

by NWSAlpine

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.

hasbeen
Posts: 556
Joined: Tue Feb 07, 2012 7:17 pm

by hasbeen

find someone to switch seatpost/saddle with so you can help diagnose the problem.
Casati Vola SLi and Dolan Preffisio
viewtopic.php?f=10&t=108931" onclick="window.open(this.href);return false;"
btompkins0112 wrote:
It has the H2 geo......one step racier than a hybrid bike

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G6612
Posts: 283
Joined: Tue Aug 17, 2010 4:20 pm
Location: Pittsburgh, PA

by G6612

Thanks for all your input carbon paste has done the trick.

by Weenie


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