Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Help with FD issue--new cable housing split

Notices
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.

Help with FD issue--new cable housing split

Old 08-07-20, 10:43 AM
  #1  
Skankingbiker
Senior Member
Thread Starter
 
Skankingbiker's Avatar
 
Join Date: Jul 2009
Location: Wisconsin
Posts: 397

Bikes: AllCity Nature Boy, On-one Pompino) , Fuji Roubaix road bike, Niner EMD, Voodoo Hoodoo MTB, Surly Pugsley/Krampug, Performer Midracer Custom

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Likes: 0
Liked 5 Times in 3 Posts
Help with FD issue--new cable housing split

I am building up a budget/parts frame for my younger brother--one of the Nashbar blue NOS frames that were floating around a few years ago. Anyhoo. I am using a newer shimano claris 3-speed front derailleur mated to a 2005ish SLX trigger shifter. The problem is that the lever was insanely difficult to upshift, often having to really lean on it and press it through to get up to the big ring. Then, after I tightened the barrel adjusters, the brand new cable housing running from the shifter split open and the housing cables splayed out.

To address some obvious points: 1) yes, its a bottom pull FD and I have it set-up as a bottom pull; 2) yes, I routed the cable correctly to to the retention bolt per the manual; 3) yes, I made sure that the ferrules were seated properly and that the cable was pulled all the way through the shifter before attaching it; and 4) yes, I set the limit screws.

Any other ideas as to what I did wrong? Its been a while since I set up a FD, but I can't think of anything else I missed.
Skankingbiker is offline  
Old 08-07-20, 12:24 PM
  #2  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 11,909

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1078 Post(s)
Liked 271 Times in 213 Posts
Is an SLX a "mountain" shifter which is incompatible with a "road" FDER?
Is it mounted high enough to clear ALL rings? Not just the outer.
Bill Kapaun is online now  
Old 08-07-20, 12:54 PM
  #3  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,598

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,277 Times in 798 Posts
Lose the left shifter in favor of a friction thumb or bar end shifter ?

One advantage: trimming the FD so as to not have chain dragging on the cage,,

new shift housing .. don't forget the end caps

with friction shifters, even the old reliable coiled square wire housing is still adequate..







...

Last edited by fietsbob; 08-07-20 at 12:58 PM.
fietsbob is offline  
Old 08-07-20, 01:28 PM
  #4  
Litespud
Senior Member
 
Join Date: Oct 2017
Location: Chapel Hill NC
Posts: 909

Bikes: 2000 Litespeed Vortex Chorus 10, 1995 DeBernardi Cromor S/S, Nashbar 3sp commuter

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 348 Post(s)
Liked 301 Times in 173 Posts
Sounds like your FD is either seriously gummed-up of jamming on something, and you're essentially rupturing the housing (which isn't designed to take serious cable tension, like spiral-wound brake housing) trying to get it to move. First-off, I would disconnect the cable from the FD and see if the FD moves smoothly through its complete range of motion without snagging on anything.

Last edited by Litespud; 08-07-20 at 02:04 PM.
Litespud is online now  
Likes For Litespud:
Old 08-07-20, 03:41 PM
  #5  
Skankingbiker
Senior Member
Thread Starter
 
Skankingbiker's Avatar
 
Join Date: Jul 2009
Location: Wisconsin
Posts: 397

Bikes: AllCity Nature Boy, On-one Pompino) , Fuji Roubaix road bike, Niner EMD, Voodoo Hoodoo MTB, Surly Pugsley/Krampug, Performer Midracer Custom

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Likes: 0
Liked 5 Times in 3 Posts
Originally Posted by Bill Kapaun View Post
Is an SLX a "mountain" shifter which is incompatible with a "road" FDER?
Is it mounted high enough to clear ALL rings? Not just the outer.
The FD clears all the rings. Someone can correct me if I am wrong, but I thought Claris was usually spec'd for hybrid bikes with trigger shifters. Also, I was under the impression that 8 speed shimano road and MTB components are interchangeable.
Skankingbiker is offline  
Old 08-07-20, 03:54 PM
  #6  
alcjphil
Senior Member
 
alcjphil's Avatar
 
Join Date: Jun 2002
Location: Montreal, Quebec
Posts: 3,936
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 968 Post(s)
Liked 318 Times in 211 Posts
Originally Posted by Skankingbiker View Post
The FD clears all the rings. Someone can correct me if I am wrong, but I thought Claris was usually spec'd for hybrid bikes with trigger shifters. Also, I was under the impression that 8 speed shimano road and MTB components are interchangeable.
Claris is specced for flat bar bikes along with Claris flat bar shifters
alcjphil is offline  
Old 08-07-20, 04:09 PM
  #7  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 11,909

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1078 Post(s)
Liked 271 Times in 213 Posts
Originally Posted by Skankingbiker View Post
The FD clears all the rings. Someone can correct me if I am wrong, but I thought Claris was usually spec'd for hybrid bikes with trigger shifters. Also, I was under the impression that 8 speed shimano road and MTB components are interchangeable.
Most hybrids have "mountain" parts, including cranks, FDER's & shifters
A flat bar road bike will have flat bar road shifters, & "road crank/FDER.
That was why my first sentence was a QUESTION,

REAR shifters/RDER;s work together (usually) between either. At least up to 10 speed I think.
Bill Kapaun is online now  
Old 08-07-20, 04:32 PM
  #8  
Skankingbiker
Senior Member
Thread Starter
 
Skankingbiker's Avatar
 
Join Date: Jul 2009
Location: Wisconsin
Posts: 397

Bikes: AllCity Nature Boy, On-one Pompino) , Fuji Roubaix road bike, Niner EMD, Voodoo Hoodoo MTB, Surly Pugsley/Krampug, Performer Midracer Custom

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Likes: 0
Liked 5 Times in 3 Posts
Originally Posted by Bill Kapaun View Post
Most hybrids have "mountain" parts, including cranks, FDER's & shifters
A flat bar road bike will have flat bar road shifters, & "road crank/FDER.
That was why my first sentence was a QUESTION,

REAR shifters/RDER;s work together (usually) between either. At least up to 10 speed I think.
But the issue with mixing a FD is usually claim ring clearance, right? Its not a different pull ratio? So if the FD covers the full range of movement for the triple and clears all rings, that should be fine, right?
Skankingbiker is offline  
Old 08-07-20, 05:03 PM
  #9  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 11,909

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1078 Post(s)
Liked 271 Times in 213 Posts
Originally Posted by Skankingbiker View Post
But the issue with mixing a FD is usually claim ring clearance, right? Its not a different pull ratio? So if the FD covers the full range of movement for the triple and clears all rings, that should be fine, right?
Believe what you want.
I don't care.
Bill Kapaun is online now  
Old 08-07-20, 05:24 PM
  #10  
Skankingbiker
Senior Member
Thread Starter
 
Skankingbiker's Avatar
 
Join Date: Jul 2009
Location: Wisconsin
Posts: 397

Bikes: AllCity Nature Boy, On-one Pompino) , Fuji Roubaix road bike, Niner EMD, Voodoo Hoodoo MTB, Surly Pugsley/Krampug, Performer Midracer Custom

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Likes: 0
Liked 5 Times in 3 Posts
Originally Posted by Bill Kapaun View Post
Believe what you want.
I don't care.
huh? if im wrong let me know.. if it's the same pull ratio and clears, it shouldn't be an issue..right? what other physical characteristics causes an incompatability?
Skankingbiker is offline  
Old 08-07-20, 07:36 PM
  #11  
Andrew R Stewart 
Senior Member
 
Andrew R Stewart's Avatar
 
Join Date: Feb 2012
Location: Rochester, NY
Posts: 13,764

Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Raleigh Pro, Trek Cycle Cross, Mongoose tomac ATB, GT Bravado ATB, JCP Folder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2495 Post(s)
Liked 561 Times in 433 Posts
Shimano road and mountain specs have had both cable pull ratios and ring spacing differences (with the front of the drivetrain) for years. This is why the smart bike brands (and home guys) who mix and match road and MtB stuff will spec a friction ft shift lever (as is done via bar end levers on touring bikes). Shimano has made various flat bar indexed shifters that work with road cranks and ders but these are less common and are sources for confusion many times when the person deciding all this hasn't done their homework well. Andy
__________________
AndrewRStewart
Andrew R Stewart is offline  
Old 08-08-20, 05:51 AM
  #12  
dedhed
SE Wis
 
dedhed's Avatar
 
Join Date: Apr 2005
Location: Milwaukee, WI
Posts: 6,797

Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400

Mentioned: 23 Post(s)
Tagged: 0 Thread(s)
Quoted: 1297 Post(s)
Liked 703 Times in 484 Posts
In general Shimano road and mountain front derailleurs have different cable pulls.
dedhed is offline  
Old 08-08-20, 07:09 AM
  #13  
andrewclaus
Senior Member
 
Join Date: Feb 2012
Location: Golden, CO
Posts: 1,822

Bikes: 2016 Fuji Tread

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 316 Post(s)
Liked 89 Times in 71 Posts
One thing we can't see is the routing of the housing. An extra bend from excessive length can add a lot of friction.
andrewclaus is offline  
Old 08-08-20, 09:53 AM
  #14  
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 29,925

Bikes: Catrike 559 I own some others but they don't get ridden very much.

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1444 Post(s)
Liked 351 Times in 216 Posts
Sorry in advance if I'm wrong, but I've got to ask. Many Shimano front derailleurs have a little finger in the shift cable path where it anchors to the derailleur arm. The cable has to route over that finger which is counter intuitive. That changes the leverage. Could that have caused the shift cable housing to split out?
__________________
My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.
Retro Grouch is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.