Irritating clicking noise on Rotor 3d cranks

Discuss light weight issues concerning road bikes & parts.
mcrdave
Posts: 100
Joined: Sun Jan 04, 2009 9:24 pm
Contact:

by mcrdave

Just to see if anyone else has had this, the cranks make an annoying tick / click every rotation when under load, have swapped bb's and made sure the bb threads are clean and has made no difference. It does go away when you ride in the rain, so maybe that's the solution!

Any ideas or anyone had /have the same issue?

It's on a Carbon frame BTW.

audiojan
Posts: 777
Joined: Fri Jan 27, 2006 1:38 pm
Location: New Hampshire

by audiojan

Could it be a stiff link in the chain? Or a chain lock? I had a really annoying clicking sound that turned out to be a Wipperman chain lock... switched to KMC master link and the sound went away.
"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin

mcrdave
Posts: 100
Joined: Sun Jan 04, 2009 9:24 pm
Contact:

by mcrdave

A chain lock? Is that when you get a sudden 'jolt' forward in the drive train? If so, I do occasionally get that, not sure how to diagnose that though, it doesn't happen when just turning the crank off the bike.

pinky
Posts: 281
Joined: Thu Oct 14, 2004 5:21 am

by pinky

You running q-rings?

mcrdave
Posts: 100
Joined: Sun Jan 04, 2009 9:24 pm
Contact:

by mcrdave

No Plinky, regular extralight rings.

User avatar
Rick
Posts: 2021
Joined: Sat Aug 29, 2009 4:30 pm

by Rick

BB30 ?

If so, read my comments in this thread
viewtopic.php?f=3&t=82498&p=723397&hilit=BB30#p723397

User avatar
grid256
Posts: 364
Joined: Tue Dec 15, 2009 8:32 pm

by grid256

I'm running Rotor 3d+ cranks with a Rotor BSA ceramic bb and Stronglight C2 rings. Clicks away like a bastard some days, and others, nothing... Almost certain it's from the non-drive side...

mcrdave
Posts: 100
Joined: Sun Jan 04, 2009 9:24 pm
Contact:

by mcrdave

Cheers Grid, just had a similar reply on another forum from another Rotor user. Pretty crap isn't it. My luck with cranks is p*ss poor! I had an Easton EC90 before this, less said about it the better!

Rick - nope it's english 68mm

mcrdave
Posts: 100
Joined: Sun Jan 04, 2009 9:24 pm
Contact:

by mcrdave

Also, a correction, I'm on stronglight chainrings too.

User avatar
stella-azzurra
Posts: 5072
Joined: Mon Jan 23, 2006 6:35 am
Location: New York

by stella-azzurra

Maybe you can isolate the problem this way:

1. Check to see if the derailleur is hitting th crank arm. This would depend on the gear you are in. Does it happen in every gear?

2 .Are you sure it's the crank and not the pedal doing this? If you have a different set of pedals try a different set.

3. Ensure that the chain links are not binding.

4. Is it the BB? Try a different BB.

5. Are the chain ring bolts torqued correctly?
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree

KWalker
Posts: 5848
Joined: Mon Dec 28, 2009 8:30 pm
Location: Bay Area

by KWalker

If its jolting forward its likely a stiff link and/or a bent hanger.
Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

User avatar
JesseD
Posts: 343
Joined: Mon Jul 21, 2008 10:20 am

by JesseD

Rick wrote:BB30 ?

If so, read my comments in this thread
viewtopic.php?f=3&t=82498&p=723397&hilit=BB30#p723397


Interested in this, as my bike clicks when I am out of the saddle peddaling, it clicks when my right crank arm is going forward (from 12 o'clock to 3 o'clock) and stops when I sit back down.

I have taken apart and cleaned and regreased everything and then put back together and it's still there, it's not BB30 and I am using a Campag 10 speed UT carbon chainset with campag BB cups, but AM using the wave washer, did you take yours out and it stopped?

Sorry for the hijax but the click is driving me crazy. :twisted:

User avatar
LardLover
Posts: 282
Joined: Sun Apr 26, 2009 2:21 pm
Location: Kingdom Of Northumbria

by LardLover

+1 for another clicker, albeit occasionally, on Rotor 3D's with Q Rings. A little annoying as it's not all the time. Seems worst when starting out on a ride then quietens down and then only now and then after that. I've put it down to 'settling in' as I've only put 600-odd miles on them. going to take them down and regrease everything this weekend and see if that helps.

I'll be keeping a close eye on this thread.
Schnice :cool:

User avatar
mr_tim
Posts: 902
Joined: Sun May 31, 2009 8:47 pm
Location: durp durp durp

by mr_tim

Did anyone try using different chain ring bolts for illusive clicks?

I've had annoying clicks on cranks from alu bolts in the past.

You can try swapping out to heavier bolts or try adding chain ring bolt washers to change the interface between metal surfaces.

If everything is 100% clean and there is no question of debris or dirt allowing play between rings / spider faces, try adding copper slip very lightly on the contact point between c/ring & spider to address any contact point interface which might be causing the noise.

Usual vouch for these clicks is whether the chain & chain rings are new or not... if the are not new or you have a mis-match of wear you may get some clicks coming from the chain as it engages / disengages on the chain ring teeth unevenly.. generally wet chain lube helps to iron out chain / chainring interface noise better than dry lube will as well.

User avatar
Rick
Posts: 2021
Joined: Sat Aug 29, 2009 4:30 pm

by Rick

but AM using the wave washer, did you take yours out and it stopped?

Yes, it has stopped and stayed gone. But I substituted enough flat washers to take up any left over space on the spindle, as described in the linked thread. IMO a wave washer is just a silly idea. But what do I know ? (I am a merchanical engineer, so maybe that gives me some credibility)

Post Reply
  • Similar Topics
    Replies
    Views
    Last post