Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Sat Dec 16, 2017 4:05 pm

All times are UTC+01:00





Post new topic  Reply to topic  [ 4 posts ] 
Author Message
PostPosted: Thu Jun 01, 2017 3:33 pm 
Offline

Joined: Thu Sep 23, 2010 5:47 pm
Posts: 107
Ive just put a new Campag 10S chain on a bike that has Veloce Gruppo with an FSA Gossamer crankset. Everything is fine on the stand but under load there is a loud clicking noise twice every revolution. On close examination the chain seems to be catching as it leaves the bottom of the chain ring, on both chain rings but louder on the large ring. Are the chain rings worn out or should I try a KMC chain? The BB seems fine but Im not sure how that would effect the chain anyway.


Top
   
PostPosted: Thu Jun 01, 2017 6:09 pm 
Offline

Joined: Mon Feb 05, 2007 5:39 am
Posts: 804
Location: Winnipeg Canada
Stiff link??


Top
   
Posted: Thu Jun 01, 2017 6:09 pm 


Top
   
 
PostPosted: Thu Jun 01, 2017 6:13 pm 
Offline

Joined: Sun Mar 02, 2014 6:36 pm
Posts: 385
Location: NY USA
I'd suspect worn rings. Are the teeth shark-finny?

_________________
Trek Madone 7.9 58cm 14.9lbs


Top
   
PostPosted: Sat Jun 03, 2017 3:32 pm 
Offline
Shop Owner / Manufacturer

Joined: Mon May 26, 2008 12:21 pm
Posts: 267
Location: UK
At what point is the clicking heard on the revolution & are you sure it's twice per chainring rev? If it's once per rev it's unlikely to the (directly) chain related, it's more likely chain-to-chainring interface, or not chain-related at all.

Having said that, check the chain is running through the RD OK (best indicator of a stiff link is to run the chain slowly backwards in the stand and you'll see the RD "twitch" as the stiff link goes through it), and pay attention too to the join in the chain and make sure that it is properly closed.

then as BikeAnon suggests, I'd look carefully at chainring wear or damaged teeth on the chairing.

It's an old-skool trick but with a new chain, put the cranks parallel with the floor with the drive side crank pointing backwards, pinch the chain at the "3 o'clock" position and try and pull the chain clear of the ring - if you can expose more than about half the height of the chainring teeth at that point and it's a new chain, it's probably time for new rings ...

Apart from that, if you dismantled everything for a clean (as many people do when replacing chain, cassette etc), definitely also check chainring bolts and pedal to crank interface.

_________________
A Tech-Reps work is never done ...
Head Tech, Campagnolo main UK ASC


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 4 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Campag SR chainrings availability

in Road

gb103

3

558

Fri Apr 14, 2017 5:38 pm

graeme_f_k View the latest post

There are no new unread posts for this topic. Campag 10 speed cassette with 11 speed chain?

in Road

campagowlo

5

768

Sun Apr 16, 2017 1:10 am

BRM View the latest post

There are no new unread posts for this topic. 2018 CAMPAG HO RD vs 2015 CAMPAG RD

in Road

wwnick

0

537

Wed Jul 19, 2017 9:11 am

wwnick View the latest post

There are no new unread posts for this topic. Edco Monobloc : chain skip after new chain install on only 1 cog

[ Go to page: 1 2 ]

in Road

Delorre

22

2585

Wed May 10, 2017 7:13 am

F45 View the latest post

There are no new unread posts for this topic. Campag SR rear mech

in Road

Timujin

8

1017

Fri Apr 28, 2017 8:40 pm

mattr View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Bing [Bot], Chris3g, seaneT1 and 28 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited