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

Can't shift to granny ring after 9-speed upgrade

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.

Can't shift to granny ring after 9-speed upgrade

Old 12-27-13, 04:02 PM
Junior Member
Thread Starter
Join Date: May 2012
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Can't shift to granny ring after 9-speed upgrade

I recently upgraded my 8-speed touring bike to 9 speeds and I'm having some trouble. I changed the rear derailleur, cassette, chain and shifters but kept the old front derailleur and chainrings. I got the crankset just 3 or 4 years ago but I think the front derailer might be the original 8-speed road derailleur that came with the bike in 1999 (even though I swapped in a compact crankset from the start). I wasn't sure if the upgrade would require new 9-speed specific versions of either.

I followed the instructions that came with the new shifters for adjusting the front derailleur but no matter how I tweak it, either it won't shift to the granny chainring or, when it does, it skips right past it and derails.

My best guess at this point is that I probably need a new derailleur but I didn't want to make any purchase decisions before getting a more knowledgable opinion. Can anyone give me advice on this?
animatorgeek is offline  
Old 12-27-13, 04:12 PM
Senior Member
Join Date: Sep 2012
Posts: 1,732
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Liked 2 Times in 2 Posts
OP; And you won't likely get a knowledgable opinion unless you provide specific information on the parts you originally had and the ones you have now... Brand, model, etc. A pix or two could also help.

ksisler is offline  
Old 12-27-13, 04:13 PM
Join Date: Apr 2007
Location: Syracuse, NY
Posts: 7,510

Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 482 Post(s)
Likes: 0
Liked 10 Times in 10 Posts
It's doubtful that the change to a 9 speed chain would cause a problem. Follow the instructions for front derailleur from the beginning at https://www.parktool.com/blog/repair-...ur-adjustments. If it still does not work have a shop mechanic look at it or order new derailleur.
cny-bikeman is offline  
Old 12-27-13, 04:14 PM
Senior Member
zukahn1's Avatar
Join Date: Oct 2011
Location: Fairplay Co
Posts: 8,879

Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed

Mentioned: 23 Post(s)
Tagged: 1 Thread(s)
Quoted: 634 Post(s)
Liked 924 Times in 396 Posts
Try hard manually setting the bike on the granny and de tenstion the cables/shifters then adjusting so it works then adjust from there.
zukahn1 is offline  
Old 12-27-13, 04:16 PM
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 36,458

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: 130 Post(s)
Tagged: 1 Thread(s)
Quoted: 4606 Post(s)
Likes: 0
Liked 472 Times in 316 Posts
Assuming was OK all along, it might be related to the narrower chain, or the slightly narrower spacing (if it is) of the new shifter.

Start with the basics. , Shift to a mid to large sprocket in back, lthen eave the levers alone and work the FD by pulling the bare wire away from the down tube. You should be able to get decent action this way, and this is also how I prefer to set both the inner and outer limits. If you cannot get decent action manually, then it might be the narrower chain. If you can get it to work, set the inner limit so it works best, then it's a matter of adjusting cable length (tension) so the shifter gives the correct trim and decent action.

An inline adjuster makes the fine tuning much easier and IMO is a must for index front derailleirs.
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  
Old 12-27-13, 04:24 PM
Retro Grouch 
Senior Member
Retro Grouch's Avatar
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 30,225

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

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1570 Post(s)
Liked 637 Times in 358 Posts
My general advice on front derailleurs is to disconnect the shift cable and start from "go" as if you were installing the derailleur for the first time. The position of the derailleur on the seat tube is crucial. My guess is you need a "skosh" of inward angle on the nose of your derailleur cage. One "skosh" = the tiniest amount that you can manage.
My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.
Retro Grouch is offline  
Old 12-29-13, 03:08 AM
Junior Member
Thread Starter
Join Date: May 2012
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I ended up taking it to the shop and they were able to fix everything by adjusting the cable tension. Looks like I have a few things to learn about front derailleur adjustment.
animatorgeek is offline  
Related Topics
Thread Starter
Last Post
Bicycle Mechanics
05-10-18 08:49 AM
Road Cycling
05-26-16 10:19 AM
05-23-15 06:28 AM
Bicycle Mechanics
08-22-10 08:19 PM
Bicycle Mechanics
04-07-10 11:10 AM

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 © 2022 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.