HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 33 posts ] 
Go to page Previous  1, 2, 3  Next
Author Message
PostPosted: Fri May 03, 2013 12:57 am 
Offline
User avatar

Joined: Tue Aug 07, 2012 2:29 am
Posts: 44
Location: Ibiuna-SP-Brazil
I'm with Miller you may not notice but you are probably holding the front lever causing The hold on thumb shiffer.

_________________
cycling,a great individual sport,were you can't reach anything,whithout group effort.


Top
 Profile  
 
Posted: Fri May 03, 2013 12:57 am 


Top
  
 
PostPosted: Fri May 03, 2013 1:14 pm 
Offline
Shop Owner

Joined: Sun Jan 03, 2010 4:58 am
Posts: 360
Yes, I have had this problem and in my case it is always the operator. I rest my hands on the thumb lever just enough that it does not return completely. The rubber hood may also be holding it up too. I have the older SR and Chorus 11 and they both do it. I am putting the finishing touches on the SR EPS system and I am certain I will not have those issues.

Next time it happens, lift up on the lever, and watch it click in. Trim the hood if needed.


Top
 Profile  
 
PostPosted: Fri May 03, 2013 11:44 pm 
Offline
User avatar

Joined: Sun May 31, 2009 8:47 pm
Posts: 879
Location: durp durp durp
From what I remember on early comments on the new shifter system, the cable end will on occasion come out from its stop end within the shifter and this will lead to the shifter blocking / Not shifting. By shifting the opposite way the end is reset into its position and normal service resumes. Not a biggie as long as you know what it is and how to fix it, happens on occasion to any number of the ultrashift units I've been running over what must be 80k+ km of shifting.


Top
 Profile  
 
PostPosted: Sat May 04, 2013 5:01 am 
Offline

Joined: Sat Feb 23, 2008 6:33 pm
Posts: 234
well, it didn't jam on today's ride. i did try to move the paddle while shifting with the thumb, and yes, it didn't allow me to shift the thumb button but i can almost say with absolute certainty that in my particular instance, i am not moving the paddle accidentally while trying to shift with the thumb button. i don't believe that is the cause of my issue. perhaps mr. tim is right, and it's something to do with the cable end instead.


Top
 Profile  
 
PostPosted: Sat May 04, 2013 10:59 pm 
Offline

Joined: Wed Jan 12, 2005 6:04 am
Posts: 420
Location: USA
I was looking for my post, but found that this is a new thread regarding an ongoing issue. I've had this problem. I found that my hoods are fairly worn and are now prone to rotating on the lever body as a result of grasping them with my hands. Rotation of the rubber hoods moves the cutout slot for the thumb shifter, thereby stopping it from returning fully to it resting position. Like other posters have mention; you cannot shift if the thumb shifter has not return to its resting position.

I just elongated and widened the thumb slot in the rubber hood. Haven't had a problem since. Note; This may not be the only reason why the shift mechanism is hanging up.


Top
 Profile  
 
PostPosted: Sun May 05, 2013 4:02 am 
Offline

Joined: Mon Jul 18, 2011 7:25 am
Posts: 46
I had the same problem when my 2011 SR was newer, but now it's quite rare. I called Campy N.A. and explained the issue. I was told 2 things: Check the hood alignment in relation to the thumb lever, and that while riding my hands put pressure on the shifters (thumb and finger levers) which causes the jamming. Campy told me to try shifting the opposite lever to free to jam.

I know the hoods are not a problem and my hand pressure is negligible. Honestly, if this many people are having the same issue there's a bigger problem going on. (Funny, I started a thread a couple years ago on this issue and no one had any experience with it?..)


Top
 Profile  
 
PostPosted: Sun May 05, 2013 4:06 am 
Offline
User avatar

Joined: Sun Nov 02, 2003 6:48 am
Posts: 1142
Location: Central USA
+1
Hood alignment or "user error" with regards to resting a finger on the shift paddle.


Top
 Profile  
 
PostPosted: Wed Jul 17, 2013 8:01 pm 
Offline
User avatar

Joined: Sat May 26, 2007 11:57 am
Posts: 516
For some reason my newer 11sp shifter has stopped to lock up, I can't even lock it up on purpose.
The only thing I can think of is that it has new cables after moving around shifters.

The reason for moving around was that a spring broke in my older white SR 11sp shifter, the one that press the
shift lever against the brake lever.

In Spain Campagnolo changed everything except the rubber hood and brake lever (less than 2 week it took with freight back and
forth to LBS!)
The new mechanism is the newest one and that one works flawless too.
So now I'm a bit bummed that I cant track the problem down. (not really no)

If it ever comes up again I would definitely change the cable/wire to start with.

What did you come up with r_mutt?

_________________
Max Gravity, unfairly treated by gravity!


Top
 Profile  
 
PostPosted: Wed Jul 17, 2013 11:44 pm 
Offline
User avatar

Joined: Fri Apr 12, 2013 1:19 pm
Posts: 440
Location: England
I have this with my 1997 Mirage kit. Seems like a design issue. Maybe try a grease?

_________________
BMC SLR02 @ 7kg
"Campagnolo; because I ride a bicycle, not a fishing rod"


Top
 Profile  
 
PostPosted: Thu Jul 18, 2013 10:30 am 
Offline

Joined: Sat Jul 29, 2006 2:36 am
Posts: 1048
Location: UK
@Devon
That's probably due to their age. They probably need a rebuild. The 11sp shifters have completely redesigned internals.

tommasini wrote:
+1
Hood alignment or "user error" with regards to resting a finger on the shift paddle.

Agree about hood alignment fouling the path of the button.
I've also seen flash (excess material from the hood moulding) reducing the slot width. Bar tape thickness can slightly reduce the slot width as well.
If the button does not return to its home position before the lever is moved then the shifter can jam. It's easy to enlarge the slot by trimming some of the rubber away.


Top
 Profile  
 
PostPosted: Thu Jul 18, 2013 10:44 am 
Offline
User avatar

Joined: Fri Apr 12, 2013 1:19 pm
Posts: 440
Location: England
Oh for sure, definitely due to age. Was just aiming to give a rounded view of all ages of the equipment, the issue is clearly an ongoing one.

_________________
BMC SLR02 @ 7kg
"Campagnolo; because I ride a bicycle, not a fishing rod"


Top
 Profile  
 
PostPosted: Sun Jul 21, 2013 2:35 am 
Offline
User avatar

Joined: Tue Sep 28, 2004 7:39 am
Posts: 1381
GASer wrote:
Same experience with my 2012 SR. Occurs from time to time and then goes away. I tried to lub the mech under the hood with some kind of WD40.


never use WD40 lube for the shifting mechanism. Only white grease or some sort of waterproof grease. If you have experience in rebuilding shifter , you can take it apart , clean , regrease. that's it. Most of the time its easier to just replace the whole body if its still under warranty.


Tricky1 wrote:
I had the same problem when my 2011 SR was newer, but now it's quite rare. I called Campy N.A. and explained the issue. I was told 2 things: Check the hood alignment in relation to the thumb lever, and that while riding my hands put pressure on the shifters (thumb and finger levers) which causes the jamming. Campy told me to try shifting the opposite lever to free to jam.

I know the hoods are not a problem and my hand pressure is negligible. Honestly, if this many people are having the same issue there's a bigger problem going on. (Funny, I started a thread a couple years ago on this issue and no one had any experience with it?..)


I've seen the same thing as what Campy NA told you. Sometimes the hood will block the travel of the thumb lever. It doesn't retract fully and can cause the locking. You can fix the problem by cutting the excess rubber of the hood with an x acto blade till there is no interference.

Second thing is user error. people that ride with their thumb on the shifter paddle. That's a bad habit.

Third, the shifter is defective and is replaced under warranty. With the new ultra shift , Campy no longer has the parts available separately , so campy now sells the body with mechanism. Its a 5 minute job. Swap the brake lever and hood and your good to go. I see more defective shifters with SR than record or chorus.

_________________
██ MARTINI bike


Top
 Profile  
 
PostPosted: Sun Jul 21, 2013 3:12 am 
Offline
User avatar

Joined: Wed Oct 20, 2010 5:56 am
Posts: 193
Just another data point - I have had this happen, very rarely. Typically resolved by flicking the button with my thumb, which points to the hood binding. Occasionally I think I've partially moved the paddle while flicking the button. I don't recall having to actually upshift to resolve it, but it's possible I've been through that scenario too. I would guess this has happened 6-10 times over 3.5 years and ~10k miles. Being in the drops is a different story - typically that's just a bad angle on the button with my thumb. Pushing forward and down gives you the illusion that it's stuck. I don't race so it's not a concern to me. [Edit - I'm on 2010 Record]


Top
 Profile  
 
PostPosted: Sun Jul 21, 2013 11:30 am 
Offline
User avatar

Joined: Sun Oct 31, 2010 10:54 pm
Posts: 434
Location: London
I've been on 3 different camp super record or record bikes, all 2012 onwards, 2 of them had the exact same issue.

_________________
Dogma 6710g


Top
 Profile  
 
Posted: Sun Jul 21, 2013 11:30 am 


Top
  
 
PostPosted: Sun Jul 21, 2013 2:11 pm 
Offline
User avatar

Joined: Tue Aug 28, 2012 2:45 pm
Posts: 702
Location: Stockholm, The Arctic...
CampagNOlo. ;)


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 33 posts ] 
Go to page Previous  1, 2, 3  Next


Who is online

Users browsing this forum: Baidu [Spider], Elrey, Exabot [Bot], JWD, Majestic-12 [Bot] and 63 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:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Best way to move bikes across country?

[ Go to page: 1, 2 ]

in Road

VTBike

19

566

Thu Apr 17, 2014 10:34 pm

oreoboreo View the latest post

There are no new unread posts for this topic. Red Shifter issue. Left shifter.

in Road

Juanmoretime

8

675

Fri Aug 16, 2013 2:18 am

Juanmoretime View the latest post

There are no new unread posts for this topic. Campagnolo super record/ record brake shoes?

[ Go to page: 1, 2 ]

in Road

Curious George

17

535

Thu Apr 10, 2014 2:18 pm

fignonsbarber View the latest post

There are no new unread posts for this topic. Campy Shifter Help

in Road

NGMN

1

320

Mon Oct 28, 2013 4:45 pm

stella-azzurra View the latest post

There are no new unread posts for this topic. Felt shifter hoods?

in Road

Lucas1234

1

266

Tue Jan 21, 2014 12:34 pm

theremery View the latest post


It is currently Fri Apr 18, 2014 12:54 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB