Chain Skipping Questions

[Dave Mennenoh]

Hi all - I've got a newish SRAM PG990 casette - it has about 1000 miles on
it tops. It was paired with a PC990 SRAM chain that broke last week, so I
got a new chain - they didn't have a 990 so I went down a model. It's now
skipping under load in the low gears. Normally, I will replace cassette and
chain together but I thought the cassette new enough to not have to do this.
If I put 1000 miles on the cassette and chain together would I need to
replace both together? I've been told by people that have XTR cassettes
($150+) that they replace the chain every 250-300 miles and then don't need
to replace the cassette very often.
Any advice here?

--
Dave -
www.blurredistinction.com/director
www.macromedia.com/go/team

 

[D T W .../\\...]

". It's now skipping under load in the low gears. Normally, I will replace
cassette and
> chain together but I thought the cassette new enough to not have to do
> this. If I put 1000 miles on the cassette and chain together would I need
> to replace both together? I've been told by people that have XTR cassettes
> ($150+) that they replace the chain every 250-300 miles and then don't
> need to replace the cassette very often.
> Any advice here?

You need to find out if the chain is moving up / down to another cog, or
jumping over some teeth,

http://www.sheldonbrown.com/derailer-adjustment.html

--
DTW .../\.../\.../\...

I've spent most of my money on mountain biking and windsurfing.
The rest, I've just wasted.