Chain Breaking and Skipping I need help!

[KenP]

Sorry should've mentioned that I did check the RD hanger before I put on the new RD.   It wall laid flat against a straight edged ruler to so I was able to rule that out pretty quickly.

You did make a good about the swing arm though, I will need to make sure that is still in a good line with the bike.  

Tell you what this has been one really sticky problem to try and work through.  I have never had this much on an issue on a bike I could not fix pretty quick.  Almost has me thinking about just saving my pennies and getting a new bike for next summer.

[jimbo]

Ok here is an update on the chain skipping.

Replaced the derailuer and chain, still got skipping.  
So started to try some other things, and shortened the chain by two lengths.  Skipping was less so went for a ride in the woods.

Still got skipping, but the deraileur always skipped down to a high cog since I don't have a rapid rise system that means I had slack in the cable.  So while riding started to adjust the cable tension skipping eventually stopped.

So although I can not pin down the exact solution a new derailuer and cable adjustment seemed to do the trick.  If anything with a whole new drive train I am ready for the next two years or more.

Question.  Is your cassette a 8 or 9 speed?

The only thing you didn't address is the shifter.  Nashbar has a sale of the X7 trigger finger for $24.00.  Might be worth buying those.  

My new bike came with X7 shifters and X9 derailleur.  I'm so happy with SRAM that I'm switching everything to the 1:1 Sram system.

I ended up bending the hanger and derailleur with a stick in the spoke.  Even with the obiviously bent hanger and derailluer it stills shifts all nine gears.  

[KenP]

Shifter with the new derailuer does all the gears and seems to be working ok.

So for now I will just ride until something fails again then maybe I will change shifter also.

[will]

Guys,

I weighed in earlier on this... My two 856's rear derailleurs that shifted unequally: The SRAM 3.0 with full length housing shifted better than the XT with the exposed cable sections and gold anodized ferrules.

Well... the gold ferrules are in the "Brake Odds & Ends Box" along with the #$%^* Formula disk brakes.

Now the 856 with the XT rear der. has full length cable housings and it shifts like a new bike. Yeah baby! Even with the relatively cheap SS cable and LBS stock housings, it's smooth... like buttah...

Another ProFlex happy ending [smiley=nod.gif]