Worn cassette

[mountainman531]

I usually have a cheap sram chain which I change every 1,000 miles or so for the longevity of the cassette.
However, I've obviously overdone it this time as I changed the chain and the new chain jumped and not just on the mid-range sprockets.
So I have put the old chain back on. The chainrings are hardly worn and I have a new rear mech on with, obviously, new jockey wheels.
The question is how long do I go with the old chain and cassette? I don't want to wear the chainrings or jockey wheels by carrying on using a "stretched" chain.

Thanks,

Steve

[Mick F]

How long is a piece of string ....

Obviously you know that the only cure is a new cassette to go with your new chain, but I'm sure you can go with your old ones for now, but the sooner you bite the bullet and get a new cassette the better.

Make sure you keep your old drive-train as clean as you can, that way your chainrings will be happier.

[byegad]

It is not the jockey wheels that will suffer its the chain rings. If you wait long enough it'll be a whole new drive chain to replace. As above it's string measuring time.

[horizon]

Steve: are you sure your chain has actually stretched? I forked out £9.00 for a Park chain tool and spent a happy half hour checking most of our bikes - it's quite a fun tool to use and very simple (even for me). The results were not what I expected: yes, the usual suspect was, but others I had thought would be stretched weren't and vice versa.