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

gears changes 10-15 secs after clicking??

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.

gears changes 10-15 secs after clicking??

Old 10-12-14, 02:12 PM
  #1  
Billy1111
Senior Member
Thread Starter
 
Join Date: Apr 2014
Location: Queens
Posts: 335

Bikes: Canyon Aeroad, Parlee ESX, Factor o2,Colnago CX Zero Disc,

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 47 Post(s)
Liked 2 Times in 2 Posts
gears changes 10-15 secs after clicking??

when I shift to an easier gear, sometimes it shifts then like 10 seconds it slips to an even easier gear??? I was messing with the cable tension ....would this be an indication of too much or too little tension?
Billy1111 is offline  
Old 10-12-14, 02:28 PM
  #2  
prathmann
Senior Member
 
Join Date: Nov 2008
Location: Bay Area, Calif.
Posts: 7,239
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 659 Post(s)
Likes: 0
Liked 4 Times in 3 Posts
Sounds like there's too much friction somewhere in the cable run so the cable isn't moving fully to the new position the moment you shift. instead it's moving partway and then gradually moves a little farther over the next 10 seconds.
prathmann is offline  
Old 10-12-14, 03:01 PM
  #3  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 12,677

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

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1341 Post(s)
Liked 564 Times in 426 Posts
Shifting to an easier gear, you pull cable.
So, that sounds like your cable is too tight if it shifts again, since the cable isn't going to "creep" tighter.

Having a delay when shifting to a smaller cog is a classic symptom of excessive cable friction.
In that scenario, you only have the spring tension of the RDER to complete the shift, so a sticky cable will slowly "creep" into position.
Bill Kapaun is offline  
Old 10-12-14, 03:43 PM
  #4  
prathmann
Senior Member
 
Join Date: Nov 2008
Location: Bay Area, Calif.
Posts: 7,239
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 659 Post(s)
Likes: 0
Liked 4 Times in 3 Posts
Originally Posted by Bill Kapaun View Post
Shifting to an easier gear, you pull cable.
So, that sounds like your cable is too tight if it shifts again, since the cable isn't going to "creep" tighter.
If there's excess friction then the cable can have more tension at the shifter end than it does at the derailleur just after the cable pull due to shifting. The cable then gradually creeps the rest of the way and the tension equalizes.
prathmann is offline  
Old 10-13-14, 10:29 AM
  #5  
cycle_maven
Collector of Useless Info
 
Join Date: Aug 2009
Posts: 1,407
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Sounds like too much tension to me. It shifts to the easier gear first, then because it's slightly too tight, it goes to an even easier gear. I bet it's really a hard push to get it into the lowest gear. I bet it doesn't upshift really well, either. Anyway, before buying all new cables and housing, try setting it up from scratch- set the limit screws, the b-screw, then set the cable tension while the bike is on the stand. If it doesn't pop from one gear to another, it's probably time for new cables and housing.
cycle_maven is offline  
Old 10-13-14, 11:22 AM
  #6  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 35,964

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 124 Post(s)
Tagged: 1 Thread(s)
Quoted: 4365 Post(s)
Likes: 0
Liked 29 Times in 28 Posts
The answer is opposite depending on front or rear. Forget about arbitrary rules and think about what's happening, and how you wish to change it.

If I read you right, the RD is sluggish on downshifts, so you might want to adjust the trim to more it inward a bit more. Since pulling cable moves it in, you want to shorten the wire (or more precisely lengthen the housing) to more the trim more inboard. Be aware that this may make upshifts sluggish, so you're looking for the trim with the best balance of the two.

If you can't get good shift response in both directions, then look at other factors such as cable friction.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mnsam
Bicycle Mechanics
11
11-05-16 07:04 AM
Shahmatt
Bicycle Mechanics
8
05-09-14 10:04 AM
goldfinch
Bicycle Mechanics
14
01-02-13 09:57 AM
Stratman351
Bicycle Mechanics
7
07-22-12 05:18 PM
pellissier
Bicycle Mechanics
7
02-09-12 07:00 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 © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.