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

New: Take Part in the August Giveaway to Win the SAVA Aurora V3.0 Carbon Road Bike


Reconditioning STI System
#1
A buddy of mine brought me his 2001 Trek 470 that he just bought and his front derailleur/derailer was stuck. The STI shifter would not release the cable to shift it down. At this point I realized I have no idea how to service these STI systems. PLEASE HELP>
Thanks Guys.

  Reply
#2
I have had the same problem due to lack of use of the STI.<br />
I just used WD40 squirted into the mechanism. Operated the STI a few times and it freed itself. I then re-lubed it with a thin oil.<br />
It did it a couple of times but has now been O.K. for 12 months.<br />
If you pull the STI brake back, you should see the little hole where the gear cable goes. That's where I injected the WD and oil.<br />
I have never stripped an STI down so don't know if you can service them.<br />
It may be worthwhile fitting a new cable inner to make sure it's not jamming, but you need to get the shifter in No. 1 position to remove the old cable.

Ride hard or ride home alone!
  Reply
#3
Yeah that's my issue is that it is stuck in the number two position. The mechanism won't release to shift back down. I will try the WD-40 and I'll report back to see if that works.

  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
New Bike Day (Come One, Come All!)
Today 12:18 AM
Giant Trance X 29 1
Today 12:12 AM
MTB Night Lighting - What are recommenda...
Today 12:08 AM
Mavic XM319
Today 12:04 AM
The LAST High-End Rim Brake Bike?
09-13-2024 03:21 PM
Which aspects of e-bikes do you think ar...
09-13-2024 12:18 AM
Have you learned to fall?
09-12-2024 07:27 PM
Ebikes for big guys
09-12-2024 12:10 PM
Would you use WD-40 for cleaning and/or ...
09-12-2024 07:50 AM
Hey All - Emmanuel Katto Uganda Here
09-12-2024 07:31 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. enkei
22 posts
no avatar 2. GirishH
21 posts
no avatar 3. rydabent
15 posts
no avatar 4. meamoantonio
13 posts
no avatar 5. Painkiller
12 posts