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 07-12-09, 11:31 AM   #1
lemak
Senior Member
Thread Starter
 
lemak's Avatar
 
Join Date: Feb 2009
Location: Harrisburg, PA
Bikes: 2009 CAAD 9, 2009 F7
Posts: 102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Pg-950

i have an 09 CAAD 9-6 and was wondering if it is possible to change out the rear cassette to the sram pg 950 11-28. it currently has the sram 12-26 cassette that came from the factory. if it is possible will the tiagra rear derailleur be able to handle it?

Thanks
lemak is offline   Reply With Quote
Old 07-12-09, 11:57 AM   #2
Panthers007
Great State of Varmint
 
Panthers007's Avatar
 
Join Date: Sep 2008
Location: Dante's Third Ring
Bikes:
Posts: 7,479
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You may have to perform a minor adjustment on your rear-derailleur. Other than that, you're good to go. I prefer the 970 SRAM cassettes - smoother and nicer shifts.

The Tiagra RD will handle this with room to spare.
Panthers007 is offline   Reply With Quote
Old 07-12-09, 12:15 PM   #3
joejack951
Senior Member
 
joejack951's Avatar
 
Join Date: May 2004
Location: Wilmington, DE
Bikes: 1984 Trek 660, 2003 Specialized Hardrock, 2004 LOOK KG386i (RIP), 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1, 2014 Islabikes CNOC 14 (son's)
Posts: 10,189
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 189 Post(s)
Check the big/big combo out on a workstand before you find out the hard way out on the road that the chain is too short after the addition of a larger cog. It likely will have plenty of length to handle two extra teeth but you don't want to bet your frame/face on it.
joejack951 is offline   Reply With Quote
Old 07-12-09, 12:49 PM   #4
lemak
Senior Member
Thread Starter
 
lemak's Avatar
 
Join Date: Feb 2009
Location: Harrisburg, PA
Bikes: 2009 CAAD 9, 2009 F7
Posts: 102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Panthers007 View Post
You may have to perform a minor adjustment on your rear-derailleur. Other than that, you're good to go. I prefer the 970 SRAM cassettes - smoother and nicer shifts.

The Tiagra RD will handle this with room to spare.

i looked and wasnt able to find the sprocket combo that i want in the 970. is it available in 11-28?
lemak is offline   Reply With Quote
Old 07-12-09, 03:08 PM   #5
Panthers007
Great State of Varmint
 
Panthers007's Avatar
 
Join Date: Sep 2008
Location: Dante's Third Ring
Bikes:
Posts: 7,479
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I don't know if they make it in this size. Check the SRAM website.

joejack is correct - You may need a new chain to go with the new cassette. Usually when installing a new cassette, the chain needs replacing, too.
Panthers007 is offline   Reply With Quote
Old 07-12-09, 03:12 PM   #6
lemak
Senior Member
Thread Starter
 
lemak's Avatar
 
Join Date: Feb 2009
Location: Harrisburg, PA
Bikes: 2009 CAAD 9, 2009 F7
Posts: 102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks everybody!
lemak is offline   Reply With Quote
Old 07-12-09, 05:40 PM   #7
Mr. Underbridge
Senior Member
 
Join Date: Mar 2007
Location: Reston, VA
Bikes: 2003 Giant OCR2
Posts: 2,369
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Panthers007 View Post
I don't know if they make it in this size. Check the SRAM website.

joejack is correct - You may need a new chain to go with the new cassette. Usually when installing a new cassette, the chain needs replacing, too.
If the "stretch" on the chain is 1/16" or less per 12 links, you shouldn't have to. If the chain is worn 1/8" or more, you definitely will.

Since his bike is so new, there's a fair chance he's OK.
Mr. Underbridge is offline   Reply With Quote
Old 07-12-09, 06:14 PM   #8
hup
Senior Member
 
hup's Avatar
 
Join Date: Sep 2008
Location: Central Valley CA
Bikes: '04 Serotta CIII, '01 Lemond Poprad, mid 90s Burley Rock N Roll Tandem, Old School Specialized HardRock, '15 GT Grade alloy
Posts: 291
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I swapped out a 12-26 to an 11-28 with a 105 short cage and it works fine with no chain swap (50-36 compact crankset). I did find some shifts to be slightly more noticeable that they were before, but all in all I'm happy with the result.
hup 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 11:55 AM.