CYCLINGFORUM.COM - Where Cyclists Talk Tech --- Return To Home

 

    Register FAQ'sSearchProfileLog In / Log Out

 

****

cyclingforum.com ****

HOMECLUBS | SPONSORS | FEATURESPHOTO GALLERYTTF DONORS | SHOP FOR GEAR

Return to CyclingForum Home Page CYCLING TECH TALK FORUM
          View posts since last visit

Slipping saddle nose..
 

Author Thread Post new topic Reply to topic
Sparky
Joined: 08 Dec 2003
Posts: 17410
Location: Portland, OR

7/30/19 10:05 AM

Slipping saddle nose..

The [new to me] Team Domane saddle tip kept slowly sinking down. So I take it apart for some alcohol cleaning carbon paste treatment.

Inside the tapered head of the seatmast clamp, on the mating surface, the bar code label. Friday parts output..

 Reply to topic     Send e-mail

dddd
Joined: 11 Jan 2004
Posts: 3274
Location: NorCal

8/2/19 8:25 AM

I find that, even without any label (to my knowledge), the bolt turns in further as (and/or after) I forcibly tilt the saddle to and fro. Some settling occurs in the assembly it seems, so the further tightening of the bolt keeps the saddle from tilting slightly in both directions while riding.
I at first wondered if I might by chance have had the carbon-rail version of the clamp pieces on there, but I'm pretty sure they are the standard-rail clamp bits.

 Reply to topic    

Sparky
Joined: 08 Dec 2003
Posts: 17410
Location: Portland, OR

8/2/19 9:46 AM

There are both, the Team Issue bike came with a carbon saddle on the bike and the bits for round rails as well.

In this case it was spinning in the orbit, so to speak.

 Reply to topic     Send e-mail

Anthony Smith
Joined: 12 Jan 2004
Posts: 841
Location: Ohio

8/15/19 7:47 AM

a solution

I had the same issue with the seatpost on a track bike a couple seasons ago. Replace the bolt and nut both with a hardened one (available from Fastenal) and crank the heck out of it (no worries about overtorquing) with an inpact socket allen on a 3/8 drive ratchet. problem solved

 Reply to topic    

Sparky
Joined: 08 Dec 2003
Posts: 17410
Location: Portland, OR

8/15/19 9:23 AM

Not going to be the solution on a carbon modern seatmast cap. I think 1nm is max tension.

My cleaning after label removal with alcohol and carbon paste application seems to have done the trick.

 Reply to topic     Send e-mail


Return to CyclingForum Home Page CYCLING TECH TALK FORUM
           View New Threads Since My Last Visit VIEW THREADS SINCE MY LAST VISIT
           Start a New Thread

 Display posts from previous:   


  
Last Thread | Next Thread  >  

  
  

 


If you enjoy this site, please consider pledging your support

cyclingforum.com - where cyclists talk tech
Cycling TTF Rides Throughout The World

Cyclingforum is powered by SYNCRONICITY.NET in Denver, Colorado -

Powered by phpBB: Copyright 2006 phpBB Group | Custom phpCF Template by Syncronicity