Forum menu
Worn chain - new ca...
 

[Closed] Worn chain - new cassette as well?

Posts: 0
Free Member
Topic starter
 
[#3782926]

My commuter is skipping and the chain is worn.

Shall I go to the expense of a new cassette as well?

I'm sure I read somewhere you should change both at the same time or the old cassette will work poorly with a new chain?

It's Shinamo 105 10 spd so although not massively expensive still not cheap. (And I'm tight)


 
Posted : 17/03/2012 6:53 pm
Posts: 8670
Free Member
 

Get a chain checker tool as well, only a fiver of ebay.

It cost me £100's in the end. But I will not get caught out again.

and yes you'll probably have to replace cassette and middle chain ring... possibly granny.


 
Posted : 17/03/2012 7:05 pm
Posts: 0
Free Member
 

depends on how worn the chain is and how long you've had it running on the same cassette. it is perfectly feasible to chainge(see what I did there) the chain and not the cassette and encounter no problems but it depends on the above (and other)factors. Try just changing the chain first and if it skips you can always do the cassette after!


 
Posted : 17/03/2012 7:25 pm
Posts: 598
Full Member
 

just changed my chain rings, chain and cassette. It makes sense and saves money.

The clever bit is finding cheap bits, try rose bikes in Germany as well as crc and ebay.


 
Posted : 17/03/2012 7:46 pm
Posts: 0
Free Member
 

Changed middle, cassette and chain this morning 🙂 Must use chain checker more in future 😉


 
Posted : 17/03/2012 7:48 pm
Posts: 6362
Free Member
 

There is a handy check point here. If you are unsure enough to ask then you probably have gone to far. No offence to OP , just the voice of personal and repeated experience!!! 😳


 
Posted : 17/03/2012 7:51 pm
 pdw
Posts: 2206
Free Member
 

Don't bother with a chain checker. Most are inaccurate because they add in roller wear. Just get a ruler or a set of calipers and measure over the longest section of chain that you can.

If you measure 10 full links a new chain will be 10inches. If your worn chain is less than 0.5% longer (1/20th inch over 10 links) the chain is fine. 0.75% longer and it's definitely time to replace. 1% longer and you'll need a new cassette too.

If it's already jumping on the current cassette then it's almost certainly new cassette time, and you might need new chainrings for the new chain.


 
Posted : 17/03/2012 8:15 pm
Posts: 0
Free Member
 

Most are inaccurate because they add in roller wear.

im pretty sure thats what chain wear actually is *waits to be corrected*


 
Posted : 17/03/2012 8:18 pm
Posts: 0
Free Member
 

Just to simplify!

http://sheldonbrown.com/chains.html
http://sheldonbrown.com/brandt/chain-care.html

so easy just to keep riding till too late! every now and again I have a spy at the chain going around the big ring and check for gaps and have a pull on the chain from front of chainring and see how much you can pull away, if it's all baggy sommats wrong!


 
Posted : 17/03/2012 8:34 pm
Posts: 39731
Free Member
 

float has it .....


 
Posted : 17/03/2012 8:35 pm