Bicycle TutorBicycle Tutor

Show off your bike!

Related video tutorials:
Clicking sound while pedaling
#1
Hi everyone, I would greatly appreciate it if someone could help me diagnose some sounds my bike is making:

I get fairly loud clicking noises when I pedal. It's hard to tell what kind of pedaling causes it. But sometimes there's even a few in rapid succession (often when going over a bump) and then it's almost a ratcheting sound. It's not just a matter of a certain pressure on the pedal, but it's more likely if there's more pressure it seems.

It's almost like the chain slips a little; I feel it, not just hear it.

here are a couple videos of the clicking in action:
http://www.youtube.com/watch?v=OI_DULoAtQU
http://www.youtube.com/watch?v=l0McFGl0XRw

Let me know what you think, or if you want any other info. thanks Smile
Reply
#2
I would say the bottom bracket area at first guess. the bike looks pretty new if it is in warranty take it back. I had a bike a couple weeks ago that sounded just like that and this it what it was..
the seatpost was such a tight fit that the owner had to twist and beat and pull on it to get it to move up and down. Which in turn flaked off little shards of the seatpost that dropped down into the spindle bearings and cups. took it apart removed the chunks repacked the bearings and a reemed and cleaned the post and seat tube
to service yourself you will need some tools if you take some close up shots of your bottom bracket and crank we can recommend the prper tools for you
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
Reply
#3
I experienced something similar.

I'd just bought a new bike and had probably logged a little less than 300 miles on it before I started experiencing something similar to what you're experiencing (if not the same exact problem). I noticed that while pedaling in certain gears, there would be a moment where the chain felt like it suddenly went slack (like the chain fell off the gear) but then literally a fraction of a second later, i would feel normal resistance again and it would feel normal.

I bought the bike from a shop several dozen miles away from my home so first I took it to the LBS (local bike shop) and they gave me some runaround half cocked theory for what was causing my problem. Needless to say I was 20bucks short after the visit and still experiencing the problem. So I took it back to where I bought the bike in the first place to tell them about the problem. They diagnosed and repaired it in a matter of minutes.

The mechanic explained to me that after riding a new bike around for awhile, the cables will stretch a bit. Since the cables have stretched out a bit, the chain will jump off the gears once in awhile during pedaling. For me, this would happen when the chain was in certain gears, not all of them. They adjusted how tightly the cables were and after that, the problem was solved. I'm pushing 700 miles now, 2 months into having the new bike and I haven't experienced the problem since.

Hope this is of help to you. I suggest you take note of what gears you experience this problem, then take the bike to the shop and tell them you want to put the bike on a repair stand and crank the pedals by hand while the chain is in those problematic gears. While pedaling, watch the chain. Is it "jumping" off the rear gears and then settling back down again? If so, then you're experiencing the same problem I did. Adjust the cables and you'll be set.

Hope this helps
Reply
#4
(10-13-2011, 02:33 AM)painkiller Wrote:  I would say the bottom bracket area at first guess. the bike looks pretty new if it is in warranty take it back. I had a bike a couple weeks ago that sounded just like that and this it what it was..
the seatpost was such a tight fit that the owner had to twist and beat and pull on it to get it to move up and down. Which in turn flaked off little shards of the seatpost that dropped down into the spindle bearings and cups. took it apart removed the chunks repacked the bearings and a reemed and cleaned the post and seat tube
to service yourself you will need some tools if you take some close up shots of your bottom bracket and crank we can recommend the prper tools for you

no, not new, just looks new Smile got it on craigslist

would the bottom bracket be so loud? and intermittent?
Reply
#5
by the pictures I would start by servicing the bottom bracket. looks like uneven gap around spindle, check for any side play.
you will need a crank puller, a pipe wrench will remove the lock ring and a cup wrench or a large adjustable will remove the cups. replace the bearings grease well and reassemble
read the tutorial on this site for help
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
Reply
#6
Here are some examples of the tools PK suggested:

http://www.amazon.com/Park-Tool-Puller-Square-Cranks/dp/B001VS1M20/

http://www.amazon.com/Park-Tool-HCW-5-Lock-Spanner/dp/B000C17KRI/

http://www.amazon.com/Park-Tool-Slotted-Bracket-Adjustable/dp/B000C14P1C/

If the axle and cups are in good shape, you'll still need 1/4" ball bearings and grease. I use grease intended for boat trailer wheel bearings; it is in expensive, resists water and lasts a long time.
http://www.amazon.com/Sunlite-Loose-Ball-Bearings-1915/dp/B0012LHL9O/

http://www.amazon.com/Sta-Lube-Marine-Trailer-Bearings-14-Ounce/dp/B000KKLLPS/

I bought my grease from Wal-Mart.
Nigel
Reply
#7
thanks guys.

if the bottom bracket really does need maintenance, how long would I have to get around to fixing before it really dies? (maybe in terms of miles?)

I guess, is it generally urgent?
Reply
#8
the longer wait the more damage you will do. take apart now inspect the spindle and cups. they may be ok. and just replace the bearing. if you keep riding you will have to replace the whole bottom bracket
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Clicking noise when pedaling dcbriggo 13 58,110 09-02-2014, 08:45 PM
Last Post: cny-man
  Road bike clicking sound Qwertybot101 6 2,086 08-15-2014, 01:13 AM
Last Post: Qwertybot101
  Clicking noise when pedaling chrisd 5 12,256 04-29-2013, 07:19 PM
Last Post: torquecyclerepairs
  Hitch and Noise While Pedaling Dulce 4 2,803 01-08-2013, 10:36 PM
Last Post: DaveM
  Bike making clinking sound when coasting steveb533 3 2,239 10-08-2012, 03:59 PM
Last Post: steveb533
  Weird sounds when pedaling kleppek 4 8,337 03-19-2012, 11:09 AM
Last Post: Manglier
  Creak/ clicking sound when i sit down JDbiker 7 7,419 08-20-2010, 02:11 AM
Last Post: JDbiker
  Funny rubbing sound BikeCrazyAgain 3 3,940 07-22-2010, 06:14 PM
Last Post: AndrewB
  Back tire not engaged when pedaling szellman 14 31,101 06-18-2010, 02:09 PM
Last Post: Bill
  Knocking sounds when pedaling and gear troubles jav100 11 19,485 06-11-2010, 07:31 AM
Last Post: Joe_W

Forum Jump:



ISSN 1918-3445 © Copyright 2007-2010 Bicycle Tutor / Privacy Policy / Created by Alex Ramon

feed