Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Tandem Cycling A bicycle built for two. Want to find out more about this wonderful world of tandems? Check out this forum to talk with other tandem enthusiasts. Captains and stokers welcome!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-08-09, 12:05 PM   #1
robmitchell
Senior Member
Thread Starter
 
Join Date: Sep 2005
Location: Meridian, Idaho
Bikes:
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Timing/Synch Chain replacement

Hi,

How often do you replace the timing chain?

Do you buy one chain from a shop or just combine two at home?
Is there any special do's and don'ts for combining?

What brand and model do you suggest for replacement?

Thanks, Rob
robmitchell is offline   Reply With Quote
Old 07-08-09, 12:48 PM   #2
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,208
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
How often do you replace the timing chain?

When it's showing about 75% wear on a Park chain checker.

Do you buy one chain from a shop or just combine two at home?

You can usually get 2 timing chains out of 3 normal chains... combined at home.

Is there any special do's and don'ts for combining?

If you want to be politically correct, use the same brand / model chain and the recommended one-time-use rivet and/or a re-useable chain link from SRAM, SuperLink, etc. You can't remove the sync chain with a re-useable link, but it does make it easier to untangle during cleaning, etc.

As for the same brand / model, it really shouldn't matter so long as they are the same width... but that's where it can get interesting since Shimano, SRAM, Campy and KMC all seem to use slightly different width chains for their respective 8, 9 and 10 speed models.

What brand and model do you suggest for replacement?

Whatever you can find on sale that suits your fancy. Timing chains are low-tech and don't depend on special ramping, etc to work.
TandemGeek is offline   Reply With Quote
Old 07-09-09, 06:46 AM   #3
John R
so cal com
 
John R's Avatar
 
Join Date: May 2008
Location: Yorba Linda Calif
Bikes: Trek hybrid commuter, Specialized Tarmac, Cannondale Cad 6, Shwinn Homegrown MB, Specialized FSR MB Cannondale Tandem
Posts: 419
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Can a timing streach on one ride?. Lately I've had to tighten mine after a 50 mile ride. I wonder if the tensioner is moving. I ride a Cannondale RT 1000.
John R is offline   Reply With Quote
Old 07-09-09, 07:05 AM   #4
twilkins9076
TWilkins
 
Join Date: Mar 2005
Location: Springfield, MO
Bikes:
Posts: 352
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by John R View Post
Can a timing streach on one ride?. Lately I've had to tighten mine after a 50 mile ride. I wonder if the tensioner is moving. I ride a Cannondale RT 1000.
I would guess your eccentric or tensioner is moving. Chain "stretch" isn't really stretching, but wearing of the links and pins over time. If you keep your chain relatively clean and lubed, it takes a lot of miles for it to "stretch".
twilkins9076 is offline   Reply With Quote
Old 07-09-09, 07:31 AM   #5
John R
so cal com
 
John R's Avatar
 
Join Date: May 2008
Location: Yorba Linda Calif
Bikes: Trek hybrid commuter, Specialized Tarmac, Cannondale Cad 6, Shwinn Homegrown MB, Specialized FSR MB Cannondale Tandem
Posts: 419
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The bold on the tensioner is small and I'm afraid of snapping it. I guess I will increase the torque on it.
John R is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 06:39 AM.