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 04-16-12, 08:04 AM   #1
whobiggs
Newbie
Thread Starter
 
Join Date: Apr 2012
Bikes:
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
10 speed 105 compatibility with 12-36 cassette

I have just tried to fit a shadow rear mech with 105 shifters to suit a 12-36 cassette and found they have changed the pull ratio. Is there another 10 speed rear mech I can use?
whobiggs is offline   Reply With Quote
Old 04-16-12, 08:23 AM   #2
rdtompki
Senior Member
 
rdtompki's Avatar
 
Join Date: Nov 2008
Location: Hollister, CA
Bikes: Volagi, daVinci Joint Venture
Posts: 3,962
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I don't think you want a 10-spd RD. The 9-spd RD have the correct pull ratio. My wife has 105 on her single with an 11-36 10-spd cassette and a Deore RD
rdtompki is offline   Reply With Quote
Old 04-16-12, 09:08 AM   #3
MNRon
29er Rider
 
MNRon's Avatar
 
Join Date: Oct 2009
Location: Central Minnesota
Bikes: Gary Fisher ARC Pro, Cannondale Caffein 29er Lefty hardtail, building a Kona Major One, Custom steel frame from early 80's with Campy Nuovo Record
Posts: 169
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by rdtompki View Post
I don't think you want a 10-spd RD. The 9-spd RD have the correct pull ratio. My wife has 105 on her single with an 11-36 10-spd cassette and a Deore RD
This is spoke for truth... The RD should be a 9spd for the 105 shifters.
MNRon is offline   Reply With Quote
Old 04-16-12, 09:26 AM   #4
DCB0
Banned.
 
Join Date: Apr 2011
Bikes: CCM Torino 76
Posts: 937
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yes. 7, 8, and 9 speed MTB rear Shimano derailleurs work with 10 speed road shifters and cassettes. The newer 'Dyna-Sys' rear derauilleurs will not work with road shifters, only with the 'Dyna-Sys' mtb shifters.
DCB0 is offline   Reply With Quote
Old 04-16-12, 09:59 AM   #5
alex jb
Senior Member
 
Join Date: Feb 2012
Location: Leicestershire, UK.
Bikes: Orbea Ora, Klein Palomino, Planet X Kaffenback, Custom Bamboo build, 1964 Schwinn deluxe.
Posts: 215
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
An Ultegra 6600 GS (med cage) would work also, I use one on a 10sp with 32t large cog.
alex jb is offline   Reply With Quote
Old 04-16-12, 11:54 AM   #6
shelbyfv
Senior Member
 
Join Date: Jun 2007
Bikes:
Posts: 2,955
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 179 Post(s)
You may also want to avoid the Shadow models. My understanding is they may work, but the others work better.
shelbyfv is offline   Reply With Quote
Old 04-16-12, 12:13 PM   #7
FastJake
Constant tinkerer
 
FastJake's Avatar
 
Join Date: May 2010
Location: Madison, Wisconsin
Bikes:
Posts: 7,577
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by alex jb View Post
An Ultegra 6600 GS (med cage) would work also, I use one on a 10sp with 32t large cog.
With a 36T cog? Doubt it, I'd just get a MTB RD.

+1 Any non-DynaSys Shimano MTB RD will work, like a 9-speed Deore, LX, XT, XTR, etc.
FastJake is offline   Reply With Quote
Old 04-16-12, 01:05 PM   #8
alex jb
Senior Member
 
Join Date: Feb 2012
Location: Leicestershire, UK.
Bikes: Orbea Ora, Klein Palomino, Planet X Kaffenback, Custom Bamboo build, 1964 Schwinn deluxe.
Posts: 215
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by FastJake View Post
With a 36T cog? Doubt it, I'd just get a MTB RD.

+1 Any non-DynaSys Shimano MTB RD will work, like a 9-speed Deore, LX, XT, XTR, etc.
I stand corrected.
It does work with a 28 and a 32 though.
alex jb is offline   Reply With Quote
Old 04-16-12, 02:01 PM   #9
cyclist2000
Senior Member
 
cyclist2000's Avatar
 
Join Date: Sep 2009
Location: Up
Bikes: Masi (retired), Giant TCR, Eisentraut, Jamis Aurora Elite, Zullo (trainer bike), Cannondale, 84 Stumpjumper, Waterford(N+1), Tern D8 (N+1), looking for a Ti frame
Posts: 3,128
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
I have a 9 speed rear xt with 105 10 speed shifters on my touring bike, works fine.
cyclist2000 is offline   Reply With Quote
Old 04-16-12, 02:07 PM   #10
Jed19 
Senior Member
 
Jed19's Avatar
 
Join Date: Oct 2004
Bikes:
Posts: 4,228
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by alex jb View Post
An Ultegra 6600 GS (med cage) would work also, I use one on a 10sp with 32t large cog.
Are you telling me that your Ultegra 6600 (medium cage) can do a 32t on your bike without issue(s)?
__________________
Regards,

Jed
Jed19 is offline   Reply With Quote
Old 04-16-12, 02:56 PM   #11
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Bikes:
Posts: 7,123
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Quote:
Originally Posted by Jed19 View Post
Are you telling me that your Ultegra 6600 (medium cage) can do a 32t on your bike without issue(s)?
It's not uncommon, there's a lot of leeway depending primarily on the derailleur hanger's orientation relative to the rear axle. There's certainly no guarantee it will work, but it might; and there's a possibility it will work, but not well.

One of the most common mistakes on this forum is when folks post definitively about a rear derailleur working with a largest cog that's well beyond the derailleur's stated spec. Folks need to understand that it might work, it might not. Trying it on a particular bike is the only way to know for sure. I've seen bikes with 27t largest cogs equipped with Shimano road derailleurs rated for a 27t largest cog, and the upper derailleur pulley hits the largest cog unacceptably even when the b screw is screwed all the way in. Bottom line: the results will vary from one bike to another.
well biked is offline   Reply With Quote
Old 04-23-12, 02:20 AM   #12
whobiggs
Newbie
Thread Starter
 
Join Date: Apr 2012
Bikes:
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hmmm...?

Quote:
Originally Posted by shelbyfv View Post
You may also want to avoid the Shadow models. My understanding is they may work, but the others work better.
You are right, I have just tried a 9sp Shadow and it almost works. I can get it working fairly well but I think once it wears a bit it will be a constant fiddling nightmare to keep it so.
whobiggs is offline   Reply With Quote
Old 04-23-12, 02:22 AM   #13
whobiggs
Newbie
Thread Starter
 
Join Date: Apr 2012
Bikes:
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hmmm...?

Quote:
Originally Posted by shelbyfv View Post
You may also want to avoid the Shadow models. My understanding is they may work, but the others work better.
You are right, I have just tried a 9sp Shadow and it almost works. I can get it working fairly well but I think once it wears a bit it will be a constant fiddling nightmare to keep it so.
whobiggs is offline   Reply With Quote
Old 04-23-12, 03:23 AM   #14
Papa Ado
almost like new
 
Papa Ado's Avatar
 
Join Date: Apr 2012
Location: Taiwan
Bikes:
Posts: 86
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Shimano recommends Shadow RD's for 12-36 (HG61):
M772 Deore XT 9
M662 SLX 9
M592 Deore 9
M810 Saint 9
Papa Ado is offline   Reply With Quote
Old 06-20-13, 12:49 PM   #15
rosswog
Junior Member
 
Join Date: Aug 2010
Bikes:
Posts: 24
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Papa Ado View Post
Shimano recommends Shadow RD's for 12-36 (HG61):
M772 Deore XT 9
M662 SLX 9
M592 Deore 9
M810 Saint 9
Shadow rear derailleurs don't have a barrel adjuster, which is necessary to set the shift cable tension when used with 10 speed road shifters.

I currently have 105 5700 10 speed shifters, XT 772 9 speed rear derailleur, and SRAM pg1070 12-36 10 speed cassette on my bike and its been a nightmare to keep tuned. There's no proper barrel adjuster in the system, so I'm using an inline cable adjuster ahead of the downtube cable stop, and in my opinion - it's no permanent fix. I also believe the direct cable routing causes an issue too, because shift cable tension is too loose in high gears (12t) and too tight in low gears (32t/36t). Not to mention the fact that the cable / housing wants to sit right over the skewer and makes it difficult to remove the rear wheel or mount the bike on a trainer.

The deore m591 rear derailleur looks like it has a barrel adjuster on it, and uses the traditional loop / bend in the cable housing - I am most likely going to order on and see if it works better.

Last edited by rosswog; 06-20-13 at 12:53 PM.
rosswog is offline   Reply With Quote
Old 06-20-13, 09:59 PM   #16
oldbobcat
Senior Member
 
oldbobcat's Avatar
 
Join Date: Jul 2005
Location: Boulder County, CO
Bikes: '79 Gios, '80 Masi, '06 Felt, early '60s Frejus
Posts: 2,926
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Quote:
Originally Posted by well biked View Post
It's not uncommon, there's a lot of leeway depending primarily on the derailleur hanger's orientation relative to the rear axle. There's certainly no guarantee it will work, but it might; and there's a possibility it will work, but not well.
Thanks for explaining this so well. I've been getting tired of doing it and getting a lot of dumb looks from people who should know better.

All a GS road derailleur does is change the capacity to pull tension on slack chain, as in a triple application. It does not change distance between the jockey pulley and the largest cog.
oldbobcat is offline   Reply With Quote
Old 07-02-13, 02:21 PM   #17
alex jb
Senior Member
 
Join Date: Feb 2012
Location: Leicestershire, UK.
Bikes: Orbea Ora, Klein Palomino, Planet X Kaffenback, Custom Bamboo build, 1964 Schwinn deluxe.
Posts: 215
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by oldbobcat View Post
Thanks for explaining this so well. I've been getting tired of doing it and getting a lot of dumb looks from people who should know better.

All a GS road derailleur does is change the capacity to pull tension on slack chain, as in a triple application. It does not change distance between the jockey pulley and the largest cog.
Yes my Planet X Kaffenback with a 6600GS happily runs a 32t top gear on my dirt wheels.
I went with a GS more to deal with the tension change between the lower gears in the 34 small front ring and the second cassette gear 29/50 chain ring combo.
i do have the B screw 3/4 way in, but could also be the relative position of the axle/derailleur on Planet X's replaceable dropouts.
alex jb 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 04:11 AM.