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 06-14-09, 05:50 PM   #1
erbfarm
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Portland, OR
Bikes:
Posts: 385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
downtube shifter boss?

I just picked up a 1997 Terry Classic. The bike originally came w/ brifters but I removed them when I spotted what I thought was a downtube shifter boss. Where the bosses are, the bike had cable stops that screwed into the bosses on the downtube. I removed the cable stops and thought I found square shifter bosses on the downtube. recently got a pair of downtube shifters (square boss) but they don't seem to fit the bosses. Could there be more than one kind of square boss? or are these bosses just to hold the cable stops? thanks!
erbfarm is offline   Reply With Quote
Old 06-14-09, 08:15 PM   #2
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Bikes: Several, mostly not name brands.
Posts: 16,798
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 225 Post(s)
Pictures would help. And details about what brand of shifter you're trying to install.
JohnDThompson is offline   Reply With Quote
Old 06-15-09, 04:09 AM   #3
erbfarm
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Portland, OR
Bikes:
Posts: 385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
here is a pic of the shifter boss
Attached Images
File Type: jpg boss.jpg (37.2 KB, 25 views)
erbfarm is offline   Reply With Quote
Old 06-15-09, 04:11 AM   #4
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
Posts: 12,258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
looks like it should fit DT shifters...

do you have some measuring calipers?
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
http://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline   Reply With Quote
Old 06-15-09, 06:29 AM   #5
norwood
GO BIG RED
 
norwood's Avatar
 
Join Date: Nov 2008
Location: Hastings,NE
Bikes: 1996 Bianchi Veloce 1993 Bridgestone MB-3 1992 Trek 700 1992 Trek 820
Posts: 678
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Those look like normal, typical shifter bosses. The threads need to be cleaned up. What kind of DT shifters are you trying to mount? Shifters off of a clamp-on band are sometimes different.
norwood is offline   Reply With Quote
Old 06-15-09, 06:37 AM   #6
erbfarm
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Portland, OR
Bikes:
Posts: 385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I got the shifters recently in a trade w/ another BF forum member. They are old Suntour shifters, nothing fancy except the part that fits on the boss is kind of weird w/ sort of pointy things in the corners and also the interior washer than fits over the boss is very narrow so doesn't easy go over the rectangular part of the boss.
erbfarm is offline   Reply With Quote
Old 06-15-09, 06:57 AM   #7
norwood
GO BIG RED
 
norwood's Avatar
 
Join Date: Nov 2008
Location: Hastings,NE
Bikes: 1996 Bianchi Veloce 1993 Bridgestone MB-3 1992 Trek 700 1992 Trek 820
Posts: 678
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'd have to say the issue is with the shifters and not the frame boss.
norwood is offline   Reply With Quote
Old 06-15-09, 09:09 AM   #8
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Bikes: Several, mostly not name brands.
Posts: 16,798
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 225 Post(s)
Quote:
Originally Posted by erbfarm View Post
I got the shifters recently in a trade w/ another BF forum member. They are old Suntour shifters, nothing fancy except the part that fits on the boss is kind of weird w/ sort of pointy things in the corners and also the interior washer than fits over the boss is very narrow so doesn't easy go over the rectangular part of the boss.
Again, pictures would help.
JohnDThompson is offline   Reply With Quote
Old 06-15-09, 09:30 AM   #9
stausty
Senior Member
 
Join Date: Dec 2008
Bikes:
Posts: 711
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sadly, the shifter bosses and levers aren't any sort of standard size. From what I recall, which of course could be wrong, there isn't a lot of inter-manufacturer compatibility to be had. With pics and measurements hopefully we can give you an answer to your problem.
stausty is offline   Reply With Quote
Old 06-15-09, 09:44 AM   #10
norwood
GO BIG RED
 
norwood's Avatar
 
Join Date: Nov 2008
Location: Hastings,NE
Bikes: 1996 Bianchi Veloce 1993 Bridgestone MB-3 1992 Trek 700 1992 Trek 820
Posts: 678
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by stausty View Post
Sadly, the shifter bosses and levers aren't any sort of standard size. From what I recall, which of course could be wrong, there isn't a lot of inter-manufacturer compatibility to be had. With pics and measurements hopefully we can give you an answer to your problem.
Generally, DT shifter bosses are pretty much standard. There some bosses on large tube aluminum frames and as I said some clamp-on shifters that may differ and also there is a top-mount style. The steel frame type boss is typically a generic braze-on that frame makers buy and use.
norwood is offline   Reply With Quote
Old 06-15-09, 09:51 AM   #11
norwood
GO BIG RED
 
norwood's Avatar
 
Join Date: Nov 2008
Location: Hastings,NE
Bikes: 1996 Bianchi Veloce 1993 Bridgestone MB-3 1992 Trek 700 1992 Trek 820
Posts: 678
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
From the OP description and without pics to go by, the shifters sound like shifters removed from a clamp-on band. Are they an old early Campagnolo style or are they a somewhat newer style?
norwood 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 09:33 AM.