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 08-21-11, 02:17 PM   #1
gems
Senior Member
Thread Starter
 
Join Date: Jan 2010
Bikes:
Posts: 177
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Are STI shifters adjustable for # of speeds?

I was looking for a front (left) STI shifter to match a spare rear (right), seller on ebay told me his Ultegra is adjustable for 2 or 3 speed... is this right? And if so how do you adjust an Ultegra shifter?
gems is offline   Reply With Quote
Old 08-21-11, 03:12 PM   #2
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,918
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
Some Shimano STI brifters were double and triple crank compatible. 9-speed 105 certainly was but I don't know about 9-speed Ultegra. Anyway, you don't "adjust' the brifter but it is controlled by how you hook up the cable. Shimano's tech document describes the methods.
HillRider is offline   Reply With Quote
Old 08-21-11, 03:23 PM   #3
billydonn
Council of the Elders
 
billydonn's Avatar
 
Join Date: Jul 2008
Location: Omaha, NE
Bikes: 1990 Schwinn Crosscut, 5 Lemonds
Posts: 3,761
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by HillRider View Post
Some Shimano STI brifters were double and triple crank compatible. 9-speed 105 certainly was but I don't know about 9-speed Ultegra. Anyway, you don't "adjust' the brifter but it is controlled by how you hook up the cable. Shimano's tech document describes the methods.
Correct. You can set up a triple brifter to control a double but not vice versa.
billydonn is offline   Reply With Quote
Old 08-21-11, 04:45 PM   #4
Al1943
Senior Member
 
Join Date: Feb 2005
Location: Oklahoma
Bikes: Trek 5500, Colnago C-50
Posts: 9,433
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by billydonn View Post
Correct. You can set up a triple brifter to control a double but not vice versa.
+1
But in 9-speed the same Ultegra left shifter is used for doubles and triples.
Al1943 is offline   Reply With Quote
Old 08-21-11, 07:24 PM   #5
gems
Senior Member
Thread Starter
 
Join Date: Jan 2010
Bikes:
Posts: 177
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for your replies. I read the tech docs for a couple Shimano STI shifters but there is no mention of adjustments for different # of chainrings.

Would it suffice to just adjust the limit screws on the derailleur?

http://techdocs.shimano.com/media/te...9830616322.pdf
gems is offline   Reply With Quote
Old 08-22-11, 08:46 AM   #6
Ikarios
Senior Member
 
Join Date: Jun 2011
Location: Westlake
Bikes:
Posts: 168
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The original 5600 10-speed 105 shifters were double/triple compatible, but there were lots of reports of the left shifter breaking when forced to shift in a double setup (this happened to me - Shimano is aware of the problem and contacting them can get you a new set of shifters if you ask an LBS to send it back to them). Sometime in the lifecycle the 5600 shifters were redesigned, and came with specific "double" or "triple" markings on the left shifter. I believe the part numbers are ST-5600 for "double-triple compatible" and 5601/5603 for double/triple, respectively.
Ikarios is offline   Reply With Quote
Old 08-22-11, 09:37 AM   #7
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Bikes: Rans Rockst (Retro rocket) Rans Enduro Sport (Retro racket) Catrike 559, Merin Bear Valley (beater bike).
Posts: 26,743
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 143 Post(s)
I own a 9-speed Ultegra equipped road bike and a 9-speed Ultegra equipped tandem. The road bike has a double chainring, the tandem is a triple. Both bikes use the same shifter that has 4 shift positions. The cable routing and connection to the derailleur for both bikes is identical.

On the double I get 2 shift positions for each chainring. The triple has one position for the granny, 2 positions for the middle ring and 1 position for the big ring.

Both bikes have Flight Deck computers which always indicate the correct chainring so I'm sure derailleurs are set up the way that Shimano intended.
Retro Grouch is offline   Reply With Quote
Old 08-22-11, 10:40 AM   #8
Al1943
Senior Member
 
Join Date: Feb 2005
Location: Oklahoma
Bikes: Trek 5500, Colnago C-50
Posts: 9,433
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Actually with 9-speed Ultegra there are 2 available positions for each of the rings on a triple. From the small ring position there is a soft click trim position, then two positions for the middle ring, and one for the big ring. But the second position for the middle ring can be used for trimming the big ring.
Al1943 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 12:06 PM.