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

New: Take Part in the May's Giveaway: Win the LIVALL PikaBoost 2 E-bike Conversion Kit


Front derailleur springs off big chainring
#1
I'm tuning my girlfriend's bike, and I've encountered a new problem with her front derailleur. I can use her thumb shifters to pop the chain up onto the big ring, but as soon as I take my finger off the shifter, the derailleur springs back and drags the chain back down to the small ring. The only way to stay in the big ring is to keep the shifter held in (which obviously is a problem). Any help?
  Reply
#2
If this is a friction shifter then there should be some way of tightening it up.
Usually there is an adjuster on the top (either a screw of "butterfly").
Just tighten that until the shifter holds it's position.
Ride hard or ride home alone!
  Reply
#3
Thumb shifters? Probably gummed up. Take a look at http://forums.bikeride.com/thread-900.html
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Third best reason to ride a bent or trik...
Yesterday 05:59 PM
The great thing about trikes
Yesterday 04:44 PM
Biking with helmet laws
Yesterday 10:23 AM
Is anyone riding with music?
06-03-2025 09:15 PM
"There's been better times
06-03-2025 09:10 PM
What was your first bicycle?
06-03-2025 04:25 PM
Where are you from and What is your favo...
06-02-2025 06:22 PM
Effective Breathing Method I use to go u...
06-01-2025 11:50 PM
Attack // Force tire style narrow front ...
06-01-2025 12:47 AM
First long distance ride..
05-31-2025 10:33 PM

[-]
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. Criminal
21 posts
no avatar 2. Flowrider
18 posts
no avatar 3. GirishH
17 posts
no avatar 4. rydabent
16 posts
no avatar 5. SPINMAN
12 posts