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PostPosted: Fri Mar 23, 2012 6:32 pm 
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Anyone experience this on a Sram red setup. The chain seems like jumping whenever i put load on it.

On the bike stand it shift well. please guide me though this. :noidea:

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Posted: Fri Mar 23, 2012 6:32 pm 


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PostPosted: Fri Mar 23, 2012 6:43 pm 
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The liner should be slightly shorter than the links so it's not being compressed...otherwise it should work fine.
Make sure the RD hanger is aligned and the tension in the cable is correct. Tune the cable tension in the 2nd and middle gears to make sure the pulleys are centered below the cogs. In other words, add enough tension that it wants to jump to the next gear then back off until it is smooth.


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PostPosted: Fri Mar 23, 2012 7:32 pm 
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I also shoot a bit of ptfe lubricant inside the housing before i run the cable. Keeps the friction on the cable to almost nil.

As far as problems from using Nokons, they don't operate any differently than any other cable when adjusted properly, so there must be an adjustment problem with your R.Der. Follow the advice above...

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PostPosted: Sat Mar 24, 2012 1:45 am 
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ok so how about the rear cable length? is that any issue for too short or too long ? mine seems like not enought tension, too soft.

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PostPosted: Sat Mar 24, 2012 5:57 am 
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if the chain is jumping under pressure, when not involved in a shift, then i doubt it's the housing.
is the chain new, possibly on an old cassette?


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PostPosted: Sat Mar 24, 2012 6:50 am 
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thisisatest wrote:
if the chain is jumping under pressure, when not involved in a shift, then i doubt it's the housing.
is the chain new, possibly on an old cassette?


yes, the cassate is used and the chain is new. any problem ?

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PostPosted: Sat Mar 24, 2012 6:53 am 
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Yes that means your cassette is toast. New cassette.


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PostPosted: Sat Mar 24, 2012 7:29 am 
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why? i dont really understand.. how about a used chain ? or maybe i try to change the cable back to standard gore ride on.

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PostPosted: Sat Mar 24, 2012 7:56 am 
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Your casette and chain wear "together". This means that you cant change either one if they have been ridden for a longer period of time.

New cassette and everything should work just fine.




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PostPosted: Sat Mar 24, 2012 9:02 am 
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Is that the only reason with old cassate that nothing to do with the nokon ? i try it on workstand and i dont have any jumping gear problem its perfect shifting. its only jump when you ride it and there is a load while sprinting uphill .

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PostPosted: Sat Mar 24, 2012 9:57 am 
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Sounds exactly like a differently worn cassete and chain.

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PostPosted: Sat Mar 24, 2012 10:27 am 
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i also suspect other problem than cassate, although is used, but its still in very top condition.

unless i test with standard cable, if problem remains, then its the cassate.

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PostPosted: Sat Mar 24, 2012 11:56 am 
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Dude, I don't know why you're even debating this.

If you change your chain before it gets too worn then you'll get better life from your cassette. If you stretch the chain too much, as in 12 links pin to pin get out to around 12 1/8" inches, then regardless of the age of the cassette you've probably ruined it. Visually inspecting it won't tell you much, but if you put a new chain on and it's jumping then you need to replace it.

Ultimately you should be replacing the chain at or before 12 1/16", you don't do this, you'll be replacing more cassettes than is necessary.

It has absolutely nothing to do with your cables. You want validation, put your old chain back on and it'll all work just fine. It's 20 minutes of your life you'll never get back though.


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PostPosted: Sat Mar 24, 2012 6:09 pm 
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sideshow_bob wrote:
Dude, I don't know why you're even debating this.

If you change your chain before it gets too worn then you'll get better life from your cassette. If you stretch the chain too much, as in 12 links pin to pin get out to around 12 1/8" inches, then regardless of the age of the cassette you've probably ruined it. Visually inspecting it won't tell you much, but if you put a new chain on and it's jumping then you need to replace it.

Ultimately you should be replacing the chain at or before 12 1/16", you don't do this, you'll be replacing more cassettes than is necessary.

It has absolutely nothing to do with your cables. You want validation, put your old chain back on and it'll all work just fine. It's 20 minutes of your life you'll never get back though.


I brought the groupset new without the cassate and i found one used cassate on forum thats all, Basically everything is new and i dont have a used chain with me.

I just need to get some info before i purchaase a new cassate as if it still jump around i will be wasting my money.

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PostPosted: Sat Mar 24, 2012 7:21 pm 
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I have red with nokon ,no issues . I think its your cassette. If there is a problem with your cable set up, you wil feel it and see the issues easy on a work stand , really sounds like it's your cassette to me. New chain and cassette and your problem will be solved. Simple
Good luck


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Posted: Sat Mar 24, 2012 7:21 pm 


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