Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the July Giveaway for a brand new 26" Thruster® Street Style BMX Cruiser Bicycle


Incomplete shifting with ST 4400 Shimano Tiagra
#1
Hi guys,

I recently bought a pair of st4400's off the local forums where I live. Outward appearance wise, they look good for their age. The left shifter clicks twice, so thats good.

However, the right shifter clicks only 3-4 times before it stops clicking altogether. Being a 9 speed shifter I would expect it to hear 8 clicks before finally stopping. The shifter itself moves, but no clicking can be heard.

I have not installed this yet, although the seller insists that after installing and putting the shifter under tension everything will work out fine. Is he right? Should I proceed installing the shifter and praying for the best, or is this not going to end well at all?
  Reply
#2
You can test the shifter under tension if you have a cable inserted by merely pulling on the cable with your hand while shifting the lever. If it still does not click 8 times the shifter is indeed not working properly.
  Reply
#3
Definitely do not install; check it out as our friend from Syracuse suggests; if it is good, great.

If not, there is a good chance that a thorough flushing with solvent followed by light oil lubrication will take care of it. Some people have had good results with spraying a full can of TriFlow into them. Something that is best done off the bike. http://www.amazon.com/Tri-Flow-Superior-Lubricant-4oz-Aerosol/dp/B002EX5B6O/ref=sr_1_cc_2?s=aps&ie=UTF8&qid=1400514054&sr=1-2-catcorr&keywords=triflow

Others have suggested WD40; the problem with WD40 is that it leaves a sticky, not lubricious residue behind.
Nigel
  Reply
#4
(05-19-2014, 10:28 AM)cny-man Wrote:  You can test the shifter under tension if you have a cable inserted by merely pulling on the cable with your hand while shifting the lever. If it still does not click 8 times the shifter is indeed not working properly.

Thanks for your replies. I've indeed tested it - and the same thing repeats itself. The shifter goes through 3-4 gears, before failing to engage anything else. The shifter still moves, but just that it dosen't seem to be able to latch on to the next gear.

I've pretty much got a lemon haven't I?
  Reply
#5
have you tried flushing with solvent?
Nigel
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
753
01-07-2020, 03:37 PM
Last Post: Bam Bam
 
15,977
10-27-2012, 06:48 PM
Last Post: Painkiller
 
5,816
08-03-2010, 03:32 PM
Last Post: cyclerUK

Forum Jump:

[-]
10 Latest Posts
Work Table For Wheels
Today 11:25 AM
1980 Schwinn Suburban
Today 09:22 AM
Pain from bike saddle.
Today 07:27 AM
26" Thruster® Street Style BMX | July 20...
Today 01:53 AM
Pinging noise fixed
Yesterday 09:02 PM
COLSON TANDEM BIKE REAR STEERING
Yesterday 08:39 PM
Need help finding a new rear derailleur
Yesterday 06:56 PM
road bike purchase help please
Yesterday 12:27 PM
Saddle Height
Yesterday 09:50 AM
What would be a fair price for this?
Yesterday 02:54 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
59 posts
no avatar 2. Painkiller
18 posts
no avatar 3. CharleyFarley
14 posts
no avatar 4. Papa Dom
11 posts
no avatar 5. Joe_W
11 posts