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

Housing too long - possible to trim without replacing housing/cables/bartape?

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.

Housing too long - possible to trim without replacing housing/cables/bartape?

Old 04-06-15, 12:59 PM
  #1  
Poseur Extraordinaire
Thread Starter
 
JohnnyCyclist's Avatar
 
Join Date: Jun 2010
Posts: 341
Likes: 0
Liked 1 Time in 1 Post
Housing too long - possible to trim without replacing housing/cables/bartape?

Every so often I ask a dumb question, and it's that time again ...

A few years ago (when I didn't know any better) I bought a bike with WAY TOO LONG housing. Not only does it look bad, but since shifting is SRAM, I sometimes find myself shifting to a smaller cassette cog when I want to shift to a bigger one - have to push that shift lever a LOOOOONG way. I have SRAM on two other bikes, and don't have this problem with them, so I blame the too long cable/housing.

Don't have a lot of miles on the bike. Bartape doesn't need replacing, and cables and housing are in OK condition.

Is it possible to back the cable out far enough, trim the existing housing, then re-route and trim the cable? I'm pretty sure the answer is "no", but want to ask before I incur the expense and work of replacing the bartape/housing/cables trio.
JohnnyCyclist is offline  
Old 04-06-15, 01:06 PM
  #2  
sch
Senior Member
 
Join Date: May 2003
Location: Mountain Brook. AL
Posts: 4,003
Likes: 0
Liked 137 Times in 105 Posts
In general yes this can be done with shifter cables with a decent housing cutter. Housing cutters are bypass cutters which crush the wires a little less than diagonal
cutters. With brake cables it is best to take the housing to a grinder and flush the cut ends but this can be dispensed with with shifter cables. Just reshape the cut
end to cylindrical shape after trimming. Put the chain in the small CW and small cassette cog first.
sch is offline  
Old 04-06-15, 01:07 PM
  #3  
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,598

Bikes: 8

Liked 1,360 Times in 866 Posts
Sure But it harder to put the cut end up against the Bench Grinder to square up the end after it's cut, but then You would Hand File the end square.

the Shimano SIS housing cutter is Overlapping U's . a lot of other Good cutters in the Felco Type the Cutters ar overlapping V's

Coiled square wire brake housing is the one that a straight sharp side cutter works

but then the ends of the housing has to be squared off as I said Above.

Last edited by fietsbob; 04-06-15 at 01:12 PM.
fietsbob is offline  
Old 04-06-15, 01:13 PM
  #4  
Senior Member
 
Looigi's Avatar
 
Join Date: Dec 2010
Posts: 8,951
Likes: 0
Liked 13 Times in 12 Posts
Yes, for cutting the housing. However, the cut and/or frayed end of the cable may get hung up in the housing, so it's best to replace the cables with new ones, the fused ends of which will pass through the housing.
Looigi is offline  
Old 04-06-15, 01:18 PM
  #5  
Senior Member
 
Join Date: Feb 2009
Posts: 6,660
Liked 171 Times in 138 Posts
Originally Posted by Looigi
Yes, for cutting the housing. However, the cut and/or frayed end of the cable may get hung up in the housing, so it's best to replace the cables with new ones, the fused ends of which will pass through the housing.
If the ends are in bad shape I would cut off the bad part before I shortened the housing.
davidad is offline  
Old 04-06-15, 02:03 PM
  #6  
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Likes: 0
Liked 1,099 Times in 745 Posts
It's no problem at all to trim over-long housing while it's still in place. Pull the cable back far enough to be sure it clears the cut and file the cut end of the housing flat and square. Assuming you are shortening the housing enough, you can shorten the cable to match and, in doing so, cut off the part crimped and distorted by the brake or derailleur's pinch bolt.
HillRider is offline  
Old 04-06-15, 02:26 PM
  #7  
Senior Member
 
Join Date: Oct 2014
Location: Central PA
Posts: 4,843

Bikes: 2016 Black Mountain Cycles Monster Cross v5, 2015 Ritchey Road Logic, 1998 Specialized Rockhopper, 2017 Raleigh Grand Prix

Liked 15 Times in 11 Posts
Originally Posted by JohnnyCyclist
Is it possible to back the cable out far enough, trim the existing housing, then re-route and trim the cable? I'm pretty sure the answer is "no", but want to ask before I incur the expense and work of replacing the bartape/housing/cables trio.
Yes, it's perfectly possible and I've done it, but in my case I simply removed the inner cable completely before trimming the housing. I did this because I had to replaced a derailleur cable that had frayed inside the shifter, killing my shifting. This was on 105 5700 STI shifters with under tape for both breaks and derailleur cables. So yes, I both replaced a cable, and trimmed the housing, without unwrapping the tape!
dr_lha is offline  
Old 04-06-15, 08:48 PM
  #8  
Senior Member
 
Dunbar's Avatar
 
Join Date: Apr 2010
Location: SoCal
Posts: 3,078

Bikes: Roubaix SL4 Expert , Cervelo S2

Likes: 0
Liked 1 Time in 1 Post
Yes, it can be done but if the cables are a few years old you should replace them and the housing regardless of how many miles are on the bike.
Dunbar is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Thumpic
Bicycle Mechanics
12
04-17-13 10:30 AM
Jakedatc
Bicycle Mechanics
3
06-11-10 11:53 AM
Commodus
Bicycle Mechanics
3
05-16-10 12:51 PM
jgjulio
Bicycle Mechanics
5
02-01-10 11:08 AM
sunnyside
Bicycle Mechanics
17
01-20-10 05:01 PM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Your Privacy Choices -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.