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 08-29-12, 06:13 PM   #1
bomac
Newbie
Thread Starter
 
Join Date: Aug 2012
Bikes:
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Any suggestions for a stoker stem replacement?

Just bought our first tandem and want to change the stoker bars. That requires a stem change - the seatpost is a 27.2 and the bars I want to instal are 31.8; does anyone know a manufacturer of this diameter combo?
bomac is offline   Reply With Quote
Old 08-29-12, 06:16 PM   #2
photogravity 
Hopelessly addicted...
 
photogravity's Avatar
 
Join Date: Aug 2009
Location: Central Maryland
Bikes: 1949 Hercules Kestrel, 1950 Norman Rapide, 1970 Schwinn Collegiate, 1972 Peugeot UE-8, 1976 Raleigh Sports, 1977 Raleigh Sports, 1977 Jack Taylor Tandem, 1984 Davidson Tandem, 2010 Bilenky "BQ" 650B Constructeur Tandem, 2011 Linus Mixte
Posts: 5,008
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It might be easier and cheaper to purchase a bar that has a 26.0 clamp. I do not know if the combination you are looking for is available or not.
__________________
--
Ridding the world of derailleurs, one bicycle at a time.

46 Hercules Roadster, 49 Hercules Kestrel, 50 Norman Rapide, 51 Hercules Lion, 52 Hercules Windsor, 56 Hercules Royal Prince, 61 Fiorelli Tandem, 67 Carlton Super Race (IGH), 70 Schwinn Collegiate (IGH), 71 Hercules, 71 STF Hercules, 72 Peugeot PX-8 (IGH), 76 Raleigh Sports, 77 STF Raleigh Sports, 77 Jack Taylor Tandem, Early-80's Mike Appel SC, 84 Davidson Tandem, Late-80's Alpine, 10 Bilenky "BQ" Signature Tandem
photogravity is offline   Reply With Quote
Old 08-29-12, 06:35 PM   #3
colotandem 
Senior Member
 
colotandem's Avatar
 
Join Date: Oct 2007
Location: Golden, CO
Bikes: n+1
Posts: 315
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
This should work for you. You will need a shim, but we have used with 27.2 seatpost with great success.

http://www.co-motion.com/index.php/product/co-motion-adjustable-stoker-stem
colotandem is offline   Reply With Quote
Old 08-30-12, 04:45 PM   #4
DubT
Senior Member
 
Join Date: Sep 2009
Location: Central Illinois
Bikes: Trek Speed Concept 9.9, 2011 Calfee Tetra Tandem
Posts: 1,038
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by colotandem View Post
This should work for you. You will need a shim, but we have used with 27.2 seatpost with great success.

http://www.co-motion.com/index.php/product/co-motion-adjustable-stoker-stem

That is a good choice if you want an adjustable stem, however if a standard stem will work then you can buy a new stem that is the correct length/angle and use a shim to adapt it to your 27.2 seatpost. That is exactly what we did.

Last edited by DubT; 08-30-12 at 05:12 PM.
DubT is offline   Reply With Quote
Old 08-30-12, 05:07 PM   #5
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)
Quote:
Originally Posted by bomac View Post
Just bought our first tandem and want to change the stoker bars. That requires a stem change - the seatpost is a 27.2 and the bars I want to instal are 31.8; does anyone know a manufacturer of this diameter combo?
Control Tech & Dimension both offer 29.8 w/shim x 31.8

Co-Motion's is probably a re-branded Dimension.

Depending on how much length and rise you need for the stoker stem, you may also be able to use a longer (150mm) threadless stem.

Last edited by TandemGeek; 08-30-12 at 05:11 PM.
TandemGeek 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 06:11 PM.