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 08-03-05, 08:11 AM   #1
CPW
Senior Member
Thread Starter
 
Join Date: Jun 2005
Location: Reno, NV
Bikes: Kona Kikapu Deluxe
Posts: 122
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I've got a Jamis Quest road bike w/ a 12-23 rear cassette and I want to replace it w/ an 11-32. It's got a Shimano 105 RD. Will I have to replace the drailleur? I'm getting different answers depending who I ask as well as a "Lets try it. It may work." I expect to buy a new chain either way.
If I have to buy a new RD, I apparently have two options:
AT @ around $90 or LX @ around $60.
I would have thought it was pretty cut and dry as to whether the 105 will handle the new cassette or not. If I need a new RD, which do your reccomend?
Thx,
CPW

Last edited by CPW; 08-03-05 at 08:21 AM.
CPW is offline   Reply With Quote
Old 08-03-05, 08:15 AM   #2
sydney
Senior Member
 
sydney's Avatar
 
Join Date: Jan 2004
Bikes:
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by CPW
I've got a Jamis Quest road bike w/ a 12-23 rear cassette and I want to replace it w/ an 11-32. It's got a Shimano 105 RD. Will I have to replace the drailleur? I'm getting different answers depending who I ask as well as a "Lets try it. It may work." I expect to buy a new chain either way.
If I have to buy a new RD I apparently have two options:
AT @ around $90 or LX @ around $60.
I would have thought it was pretty cut and dry as to whether the 105 will handle the new cassette or not. If a need a new RD, which do your reccomend?
Thx,
CPW
You get different answers, because 'it depends'. Big cog spec for that deraielr is 27.They usually handle a 30 and sometimes a 32 depending on hanger length. Ya got nothing to loose by trying it and adjusting the B screw to the limit. Otherwise get an LX and be done with it.
sydney is offline   Reply With Quote
Old 08-03-05, 09:31 AM   #3
CRUM
Recovering Retro-grouch
 
CRUM's Avatar
 
Join Date: Dec 2003
Location: Some call it God's country. I call it Acton, Maine
Bikes: Too Many - 7 or 8
Posts: 5,008
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If the Quest came with a triple crankset, then the chain wrap is most likely 37 if it is a 105 derailleur GS. That is assuming Jamis spec-ed the right derailleur Shimano advises for use with a triple. If it is a GS(mid cage) derailleur, the jump to 32 teeth may be attainable with just a chain swap. As sydney says , it's worth a shot just changing the chain first and seeing what happens.
__________________
Keep it 'tween the ditches

My Blog - Lost in the Bo Zone

Last edited by CRUM; 08-03-05 at 09:46 AM.
CRUM is offline   Reply With Quote
Old 08-03-05, 04:36 PM   #4
CPW
Senior Member
Thread Starter
 
Join Date: Jun 2005
Location: Reno, NV
Bikes: Kona Kikapu Deluxe
Posts: 122
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I went w/ 11-32 cassette.
Unfortunately, it required cassette, derailleur and
chain. I just hope I didn't go so extreme that I'll
be sorry. I kept all the original parts in case I
want to go back. I've now got the same gearing as
Jamis's touring bike so it should be workable. I've
lost alot of fine tuning (big jumps between gears now) but hopefully not too much on
the tall end. I went w/ the XT stuff as that was what
they had in stock and they gave me a deal on it. It
would have cost me more that the difference between AT
and LX to go back to the shop (1 hr round trip-but the
place I like to do business).
I'll see how it goes. Thanks for the replies.
CPW
CPW 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 05:25 AM.