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

how do barrel adjusters work?

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.

how do barrel adjusters work?

Old 03-20-19, 07:22 AM
  #1  
epnnf
Senior Member
Thread Starter
 
epnnf's Avatar
 
Join Date: Jun 2008
Location: SW Ohio
Posts: 159

Bikes: 2016 Masi strada vita due, 2019 Kona Dew Plus

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 112 Post(s)
Liked 13 Times in 8 Posts
how do barrel adjusters work?

Went to replace the cables on the Kona. Cut the old cable, took it out & turned the barrel adjusters all the way in. I turned them & turned them & turned them........ They wouldnt stop; I could turn them in forever. Also, they were not moving. Previously, the barrel adjuster was a threaded thing- you could only turn it in so far before it would bottom & turn it out til it ran out of thread. Apparently, now there is a new design? sup?
epnnf is offline  
Old 03-20-19, 07:32 AM
  #2  
andrewclaus
Senior Member
 
Join Date: Feb 2012
Location: Golden, CO
Posts: 1,843

Bikes: 2016 Fuji Tread

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 325 Post(s)
Liked 96 Times in 77 Posts
Did you try removing the barrel adjuster completely? If it's not engaging the threads in the shifter, it should fall off without the cable in there. It's possible it's completely stripped, but I've never seen that happen. See if you can pull it out of the shifter and inspect both male and female threads. I assume you're talking about the adjusters on the shifters.
andrewclaus is online now  
Old 03-20-19, 07:35 AM
  #3  
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 22,990

Bikes: Some silver ones, a red one, an orange one and a few titanium ones

Mentioned: 113 Post(s)
Tagged: 1 Thread(s)
Quoted: 3528 Post(s)
Liked 985 Times in 613 Posts
Originally Posted by epnnf View Post
Went to replace the cables on the Kona. Cut the old cable, took it out & turned the barrel adjusters all the way in. I turned them & turned them & turned them........ They wouldnt stop; I could turn them in forever. Also, they were not moving. Previously, the barrel adjuster was a threaded thing- you could only turn it in so far before it would bottom & turn it out til it ran out of thread. Apparently, now there is a new design? sup?
It sounds like your barrel adjuster is stripped. You didn't say which barrel adjuster however. Some brake barrel adjusters aren't threaded into the frame. They just fit in a socket and you use the jam nut to adjust the length. The Jagwire M6 on this page is an example That's kind of old school but still done on a few bikes.
__________________
Stuart Black
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
cyccommute is offline  
Old 03-20-19, 09:14 AM
  #4  
Crankycrank
Senior Member
 
Join Date: Jan 2009
Location: San Diego, CA
Posts: 1,724
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 288 Post(s)
Liked 94 Times in 77 Posts
Photos would help. Some adjusters have the knurled knob that disengages when pushed down and other designs exist.
Crankycrank is offline  
Old 03-20-19, 09:25 AM
  #5  
curbtender
Senior Member
 
curbtender's Avatar
 
Join Date: Mar 2007
Location: SF Bay Area, East bay
Posts: 6,374

Bikes: Marinoni, Kestral 200 2002 Trek 5200, KHS Flite, Koga Miyata, Schwinn Spitfire 5, Schwinn Speedster, Mondia Special, Univega Alpina, Miyata team Ti, MB3

Mentioned: 37 Post(s)
Tagged: 0 Thread(s)
Quoted: 843 Post(s)
Liked 317 Times in 231 Posts
You have the the inner bolt and spring in there? Some you just twist and others require you to pull sleeve up to adjust.
curbtender is offline  
Old 03-20-19, 11:12 AM
  #6  
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 1,285 Times in 802 Posts
You have to hold 1 side (of an inline adjuster) as you turn the other, it may take 2 hands..

they work by making the housing longer and so the cable relatively shorter..
fietsbob is offline  
Old 03-21-19, 09:31 AM
  #7  
epnnf
Senior Member
Thread Starter
 
epnnf's Avatar
 
Join Date: Jun 2008
Location: SW Ohio
Posts: 159

Bikes: 2016 Masi strada vita due, 2019 Kona Dew Plus

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 112 Post(s)
Liked 13 Times in 8 Posts



rear shifter on my Kona
Originally Posted by Crankycrank View Post
Photos would help. Some adjusters have the knurled knob that disengages when pushed down and other designs exist.
duh, guess they work the same way as the barrel adjusters on a typical RD:
(ignore dates on photos)
epnnf is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
davei1980
Bicycle Mechanics
5
07-14-19 07:00 PM
Gonemad
Bicycle Mechanics
4
05-29-17 08:58 PM
Ronno6
Bicycle Mechanics
10
11-05-15 03:12 PM
smgmk2
Bicycle Mechanics
1
09-03-15 07:16 AM
duppie
Tandem Cycling
6
04-19-10 01:47 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


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.