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

New: Take part in the October Giveaway for the Haven Bicycle Co. beach cruiser


Clank sound after 10 miles
#1
[attachment=5352]I hope someone has run across this before. I have a Giant mountain bike and I have been using it on the paved trail a lot lately. Recently, I began hear a clanking sound after I ride about 10 miles. Sounds like when a pedal hits a kickstand that isn't all the way up. I can't duplicate it on a bike stand. It doesn't start until 10 miles and after 15 miles, I get an added rubber squeaking sound on top of the clank. The noise happens in the same pedal position every time and particularly when I'm pedaling hard and hardly at all if I pedal lightly. I had the derailleurs and sprockets cleaned recently. Any ideas? Thank you.
  Reply
#2
Once per crank rev can't be anything with derailleurs or rear wheel in this case. "Sprockets" is not specific - rear is cassette/freewheel or cogs, front is chainwheels, but the most likely candidate is a loose tightening ring for the bottom bracket, the other less likely being a bad bottom bracket. Get the tool for tightening the rings, then back off the left side, tighten the right side, then retighten the left. Be sure to properly tighten the crank arms and pedals afterward as well. If the problem persists the BB is probably bad.
  Reply
#3
Thank you for the correct terms and advice. I will look for a place to purchase the tool and give it a shot.
(09-11-2014, 07:15 PM)cny-man Wrote:  Once per crank rev can't be anything with derailleurs or rear wheel in this case. "Sprockets" is not specific - rear is cassette/freewheel or cogs, front is chainwheels, but the most likely candidate is a loose tightening ring for the bottom bracket, the other less likely being a bad bottom bracket. Get the tool for tightening the rings, then back off the left side, tighten the right side, then retighten the left. Be sure to properly tighten the crank arms and pedals afterward as well. If the problem persists the BB is probably bad.
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
[Sponsored] Souke Sports Cycling Apparel...
Today 04:19 AM
What was your first bicycle?
Yesterday 03:42 PM
WD40 on chain?
Yesterday 07:29 AM
VINTAGE DERAILLEURS: Campagnolo 50s-80s
Yesterday 02:37 AM
What's your No.1 concern when you purcha...
10-17-2021 09:18 PM
Chain skips under heavy load when pedall...
10-17-2021 06:18 PM
Gears changing by themselves
10-17-2021 06:05 PM
Bike evaluation
10-16-2021 02:06 AM
V Brakes just won’t adjust properly
10-16-2021 12:19 AM
Is this frame dent a concern?
10-13-2021 04:50 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. Souke Sports
27 posts
no avatar 2. Criminal
11 posts
no avatar 3. ReapThaWhirlwind
10 posts
no avatar 4. Zviedrs
9 posts
no avatar 5. JoJoJo
9 posts