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

New: Take Part in the new May's Giveaway: coming soon!


Middle chainring chain noise
#1
I have a Shimano 105 triple on my Synapse road bike. I'm getting a lot of noise when the chain is on the middle front ring, regardless of which cog I'm in on the back. This disappears completely when the chain is on the largest front ring.
I've had the bike up on the stand and there is no rubbing against the front derailleur, or any other obvious problem. There isn't any skipping when i ride but it's always a relief to get onto the outer ring at the front. Any ideas what I have missed or is this just a something you have to put up with on a triple?
Thanks Tom

  Reply
#2
What type of noise is it? I.E. Rubbing, grinding, scraping, etc.? Also, does it make the noise when you have the bike on the repair stand or just under load? Look at the teeth of the center ring to check for excessive wear, worn teeth look like a shark's fin. Also check to see if the ring is bent. When you have it on the stand with the chain on the large or small ring spin the pedals and look a the crankset from the front or top to see if the center ring is bent or warped.

  Reply
#3
Loose chainring bolts?

  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
New Member
Today 03:46 AM
How to stay safe while biking?
Today 03:44 AM
Safest bike helmets
Today 03:42 AM
Biking with helmet laws
Today 03:38 AM
Exploring the Hills with My Birch Hunter...
Today 12:48 AM
Doctors are Prescribing Cycling
Today 12:25 AM
Wearable Fitness Trackers
Yesterday 06:08 AM
Columbia 3 wheel differential
Yesterday 12:27 AM
Great Trail Ride - NW Lancaster, Pa
05-14-2025 05:26 PM
Pre Ride Food Intake
05-13-2025 11:12 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. Flowrider
21 posts
no avatar 2. Painkiller
20 posts
no avatar 3. GirishH
16 posts
no avatar 4. enkei
12 posts
no avatar 5. SPINMAN
12 posts