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

New: Take part in the August Giveaway for a brand new Street Bicycle Core Line fixed gear bike


Chain not always catching
#1
Hiya all

First time on here so please be gentle lol

Rather odd issue coming up lately.

Sometimes when I go to pedal it can take a quarter or half a pedal for my chain to actually catch and do anything.

This can happen at all speeds and gears and when starting off.

Sometime it will also just slip completely and make a horrible clunking noise (which also causes me to loose balance if it "drops" whilst i pedal)

is there a way of tightening it up without shortening the chain dont know if there is a chain tensioner on rear derailer?

many thanks
  Reply
#2
Sounds a bit more complicated.

* has the chain stretched? You need to measure.
* what is the condition of the freewheel/cassette? Pictures REQUIRED.
* what is the condition of the rear derailleur? Pictures REQUIRED.
* Is it a new bike, or older?
* why do you think that shortening the chain will make any difference? If the chain was correctly sized when installed, the length is not an issue.
* Are the shifter index? If yes, is the cable adjusted properly?

could be something else entirely; you have not provided enough information to be specific.
Nigel
  Reply
#3
This has nothing to do with chain "tension" or length. If it truly happens even when you start up (as you should) in a lower gear, and also occurs when just pedaling the problem is that the mechanism that clicks when you coast and engages when you pedal is not working properly. The cause is either broken spring(s)/pawl(s) or dirt/rust. This link shows how the system works on a freehub (cassette) system, but a freewheel has the same mechanism.

Freewheels can sometimes be saved by flushing out with solvent and then lubricating with oil - best done with the freewheel removed. Disassembly of a freewheel is not recommended, as you can't get new pawls or springs anyway.

To overhaul a freehub: http://www.bikeradar.com/us/gear/article/workshop-how-to-overhaul-your-freehub-23757/
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
8,376
08-19-2009, 03:11 PM
Last Post: cyclerUK

Forum Jump:

[-]
10 Latest Posts
Where are you from and What is your favo...
Today 02:52 PM
Moulton MK3 1970s
Today 02:44 PM
2020 road cycling season
Today 10:15 AM
State Bicycle Core Line | August 2020
Today 03:03 AM
Putting the new bike together
Yesterday 07:16 PM
Back on the bike in Wales
Yesterday 03:43 PM
can not shift front or rear derailleurs
Yesterday 05:22 AM
Replacing a front derailleur
Yesterday 03:46 AM
clicking new chain
08-01-2020 09:34 PM
Folding bikes for heavier riders
08-01-2020 06:58 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
69 posts
no avatar 2. CharleyFarley
18 posts
no avatar 3. Painkiller
13 posts
no avatar 4. RoadRacer2020
7 posts
no avatar 5. JoJoJo
5 posts