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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-01-11, 10:22 AM   #1
Aristotle80
Senior Member
Thread Starter
 
Aristotle80's Avatar
 
Join Date: Oct 2010
Location: Baton Rouge/New Orleans
Bikes: 2010 Torker T-300, with drop bars. I also have a vintage lugged Mercier 12 speed with downtube shifters that I'm crazy about. A repainted, rebuilt 1986 Raleigh Pursuit road bike
Posts: 72
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Change from stem shift to downtube?

Hi! I have an old Raleigh road bike that came with friction stem shifters. I was thinking of replacing them with a clamp on downtube shifter, a ratcheting model I like. I put it in place to make sure that it fit the tube okay, but I noticed that the cables would be a few mm farther away from the downtube than the narrow path from the old cable stops. Just about 3 mm farther from the tube on either side.

Would 3 or 4 mm change in the lateral position of the shifter cables at the top of the downtube make a serious difference in performance? Would I have to get a different cable guide for the bottom of the bottom bracket? Thanks.
Aristotle80 is offline   Reply With Quote
Old 12-01-11, 10:27 AM   #2
RavingManiac
Senior Member
 
RavingManiac's Avatar
 
Join Date: Jun 2010
Location: Maine
Bikes: 90 Raleigh Chill MTB, 92 Trek 1200, 2004 Trek 2300, 67 Sports, 70 Sports, 71 Philips, Lotus Challenger, 74 Super Course, Univega Gran Tourismo, Nishiki Seral
Posts: 552
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
No. It will be no problem.
RavingManiac is offline   Reply With Quote
Old 12-01-11, 11:18 AM   #3
Puget Pounder
Wookie Jesus inspires me.
 
Puget Pounder's Avatar
 
Join Date: Mar 2011
Location: Seattle, WA
Bikes:
Posts: 2,225
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like it'll work out just fine. If your previous shifters routed over the BB shell, then the new ones will too. The only thing you have to worry about is if there is a braze on cable stop to prevent the clamp on shifters from slipping.
Puget Pounder is offline   Reply With Quote
Old 12-01-11, 11:23 AM   #4
FastJake
Constant tinkerer
 
FastJake's Avatar
 
Join Date: May 2010
Location: Madison, Wisconsin
Bikes:
Posts: 7,574
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by RavingManiac View Post
No. It will be no problem.
+1

But since you already have cable guides for your down tube, consider bar-end shifters. I'm a convert (from DT and stem) and they are my favorite type of shifters to use.
FastJake is offline   Reply With Quote
Old 12-01-11, 11:23 AM   #5
DCB0
Banned.
 
Join Date: Apr 2011
Bikes: CCM Torino 76
Posts: 937
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I hjave set up and aride a few older bikes where the shift cables ran at a bit of a funny andle and it was never a problem.
DCB0 is offline   Reply With Quote
Old 12-01-11, 09:46 PM   #6
Aristotle80
Senior Member
Thread Starter
 
Aristotle80's Avatar
 
Join Date: Oct 2010
Location: Baton Rouge/New Orleans
Bikes: 2010 Torker T-300, with drop bars. I also have a vintage lugged Mercier 12 speed with downtube shifters that I'm crazy about. A repainted, rebuilt 1986 Raleigh Pursuit road bike
Posts: 72
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks everyone!
Aristotle80 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 07:09 PM.