this post was submitted on 15 Jun 2023
6 points (87.5% liked)
bike wrench
822 readers
2 users here now
A place to ask bicycle repair questions, and for bike shop monkeys to share advanced non commercial wrenching resources (no YouTube self promotion). This is only for repair related topics.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
If this is on the front chain ring I would check your limit screws on your front derailleur to make sure it can actually swing all the way to the position for the third chainring.
Other possible causes, the pawls in the shifter getting gunked up. You could try cleaning it out with WD40 or alcohol. The put back in some oil like tri flow.
Final possibility the cable/housing could be shot and needs to be replaced.
Can't do it rn, but will check the limit screws when I can.
I'm guessing I'll have to disassemble it for that.
I'll check the cabels when I can.
The limit screws should be easily accessible. Usually they just take a small screw driver or Allen key to adjust and they typically have a small H and L next to it. You should adjust the H screw.