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 10-16-09, 09:03 PM   #1
intheways
Senior Member
Thread Starter
 
Join Date: Oct 2007
Location: Kirkland, WA
Bikes: Soma Doublecross DC
Posts: 191
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Which XT f. dérailleur?

I'm building a frankenbike commuter/tourer with an XT rear dérailleur, 9-spd chain, rings and cassette. I'm running a road triple up front (26-38-50) on a Soma Doublecross DC and I'm trying to decide which fd-m77X will work best.

Anyone else running a similar setup?
intheways is offline   Reply With Quote
Old 10-16-09, 09:28 PM   #2
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
the e doesn't need an accent thx
operator is offline   Reply With Quote
Old 10-16-09, 09:34 PM   #3
intheways
Senior Member
Thread Starter
 
Join Date: Oct 2007
Location: Kirkland, WA
Bikes: Soma Doublecross DC
Posts: 191
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My browser automatically does it. Thanks for the substantive contribution
intheways is offline   Reply With Quote
Old 10-16-09, 09:37 PM   #4
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by intheways View Post
My browser automatically does it. Thanks for the substantive contribution
yw

P.S If you don't tell us what shifters you're running there is no answer to this thread.
operator is offline   Reply With Quote
Old 10-16-09, 09:46 PM   #5
intheways
Senior Member
Thread Starter
 
Join Date: Oct 2007
Location: Kirkland, WA
Bikes: Soma Doublecross DC
Posts: 191
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by operator View Post
yw

P.S If you don't tell us what shifters you're running there is no answer to this thread.
That would help. I'm will be running Ultegra 9-spd brifters.

Thanks
intheways is offline   Reply With Quote
Old 10-16-09, 10:36 PM   #6
JiveTurkey
Low car diet
 
JiveTurkey's Avatar
 
Join Date: Aug 2007
Location: Corvallis, OR, USA
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
Posts: 2,407
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by intheways View Post
That would help. I'm will be running Ultegra 9-spd brifters.

Thanks
Shimano's road and MTB front shifters/derailleurs operate on a different cable pull ratio. You're better off using a road triple 9-speed FD.

The only issue I can see is if your frame routes the FD cable from the top (top pull). There is a part you can put on to allow a cable that runs from the top to work on a bottom-pull FD (all road FDs). Edit: Here it is "'Cross Cable Clamp with Cable Pulley" in various sizes and colors: http://www.bikeman.com/Problem_Solve..._Supplies.html

Last edited by JiveTurkey; 10-16-09 at 10:49 PM.
JiveTurkey is offline   Reply With Quote
Old 10-17-09, 12:13 AM   #7
Chris_W
Gear Combo Guru
 
Chris_W's Avatar
 
Join Date: May 2007
Location: Switzerland
Bikes: Spec' Tarmac (road), Ridley Fenix (commuter & fast tourer), Salsa Mamasita (MTB), CoMo Speedster (tandem), Surly Big Dummy (cargo), Airnimal (folder)
Posts: 2,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Your chainring sizes and your shifter both call out for a road front derailleur, so get an Ultegra 6603 or 6703, or a 105 5603. A lot of places are selling 6600 stuff for cheap right now because 6700 was just released to replace it.
Chris_W is offline   Reply With Quote
Old 10-17-09, 12:24 AM   #8
Shimagnolo
Senior Member
 
Shimagnolo's Avatar
 
Join Date: May 2008
Location: Zang's Spur, CO
Bikes:
Posts: 7,516
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 145 Post(s)
Quote:
Originally Posted by intheways View Post
I'm building a frankenbike commuter/tourer with an XT rear dérailleur, 9-spd chain, rings and cassette. I'm running a road triple up front (26-38-50) on a Soma Doublecross DC and I'm trying to decide which fd-m77X will work best.

Anyone else running a similar setup?
Ultegra 9s: FD, brifters
XT 9s: crankset 22/32/48, cassette 11-34, RD
http://www.dim.com/~ryoder/SomaPhotos/IMGP0014.jpg
http://www.dim.com/~ryoder/SomaPhotos/IMGP0018.jpg
http://www.dim.com/~ryoder/SomaPhotos/IMGP0019.jpg
Shimagnolo is offline   Reply With Quote
Old 10-17-09, 08:46 AM   #9
intheways
Senior Member
Thread Starter
 
Join Date: Oct 2007
Location: Kirkland, WA
Bikes: Soma Doublecross DC
Posts: 191
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Shimagnolo View Post

Cool bike! I actually have a 5603 right now and I'm using a 10-spd setup, but plan on going back to 9. My only problem with the road f der is that I have a an XT rear hub and the chainline spec is different.

Thanks
intheways is offline   Reply With Quote
Old 10-19-09, 01:57 AM   #10
Chris_W
Gear Combo Guru
 
Chris_W's Avatar
 
Join Date: May 2007
Location: Switzerland
Bikes: Spec' Tarmac (road), Ridley Fenix (commuter & fast tourer), Salsa Mamasita (MTB), CoMo Speedster (tandem), Surly Big Dummy (cargo), Airnimal (folder)
Posts: 2,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by intheways View Post
My only problem with the road f der is that I have a an XT rear hub and the chainline spec is different.
The rear hub spacing shouldn't mean that you need to use an MTB FD, a road FD should have plenty of adjustability to make it work fine. A lot of stock touring bikes come set up like this. For instance, my Trek 520 has a 135mm rear hub and came with a 105 triple crankset and FD (both 5503 models), which caused no problems at all.
Chris_W is offline   Reply With Quote
Old 10-19-09, 10:42 AM   #11
intheways
Senior Member
Thread Starter
 
Join Date: Oct 2007
Location: Kirkland, WA
Bikes: Soma Doublecross DC
Posts: 191
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Chris_W View Post
The rear hub spacing shouldn't mean that you need to use an MTB FD, a road FD should have plenty of adjustability to make it work fine. A lot of stock touring bikes come set up like this. For instance, my Trek 520 has a 135mm rear hub and came with a 105 triple crankset and FD (both 5503 models), which caused no problems at all.
Thanks.

I'll mess with my adjustments some more.
intheways is offline   Reply With Quote
Old 10-19-09, 10:44 AM   #12
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: 10,116
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 142 Post(s)
With a 9 speed chain, you'll want to use a 9 speed front derailler. If you don't mind going down a few levels, the newer Tiagra deraillers will work and are readily available. Otherwise, you'll be looking to eBay for an Ultegra 6503 or 105 5503 FD. The cage on a 10 speed FD is narrow enough that you'll have issues with the cage rubbing on the chain in otherwise easily usable gear combinations.
joejack951 is offline   Reply With Quote
Old 10-19-09, 12:55 PM   #13
Shimagnolo
Senior Member
 
Shimagnolo's Avatar
 
Join Date: May 2008
Location: Zang's Spur, CO
Bikes:
Posts: 7,516
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 145 Post(s)
Quote:
Originally Posted by joejack951 View Post
Otherwise, you'll be looking to eBay for an Ultegra 6503 or 105 5503 FD.
A year ago I was collecting the parts to build that bike in the links above.
You wouldn't believe how long it took me to find a 6503 FD.
I finally found a NOS on eBay and had to drive the price up to darn near new MSRP to get it.
Shimagnolo 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 03:27 PM.