Question about Sram X7 Mountain Bike Rear Derailleur

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I have spend the last hour adjusting the cable tension on my new SRAM X-7 derailleur installed on my KONA Coilair with a 9-speed cassette, however the derailleur is only functioning on six of the nine cogs (the six high end when the cable is loosened, and the six low end when the cable is tightened) i made sure in the store that the derailleur was a nine speed however i am stumped please help?

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I think you spent more time MAL-adjusting it. Try these links:

http://parktool.com/repair/readhowto.asp?id=64

Get the physical limits of the derailleur dialed in with NO CABLE attached before monkeying with the the cable adjustment.

http://parktool.com/repair/readhowto.asp?id=117

Posted on Jul 29, 2010

  • ptramel Mar 15, 2011

    I have come to the conclusion that the X7 RD is a defective part -- at least there are defective batches of them. My 8-spd X7 RD had the problem you describe. Thought it was a problem with my chain line (I was using it on an old road bike). But I switched it to a new build, with a perfect chain line, and same problem. I discovered that it can move as it is supposed to move by hand (hand on the derailleur), but there is no way to adjust a cable to move it as it is supposed to move. When I looked online I discovered that many other people have the same problem with the X7. Thanks to those who posted the obvious solutions; but the problem here is usually the part, not the cable or pre-cable adjustment.

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The barrel is for fine tuning the indexing among the gears. Limit screws set the inner and outer physical swing of the derailleur.

A simple web search for "Sram 3.0 Mountain Bike Rear Derailleur adjustment" finds the manual.

http://www.sram.com/_media/techdocs/RD_X0_X9_X7_5_4_3_QS_03.PDF

There IS a barrel adjuster.

http://www.parktool.com/blog/repair-help/rear-derailler-adjustments-derailleur

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Hi Everyone! I have a Shimano 5603 Hollowtech 2 triple chainring.......(10 Speed) I want to add a Utlegra 6600 front derailleur and Ultegra 6600 rear derailleur. Also 10 speed cassette, Ultegra...


No -

If you are going to use the front triple crankset, then you need to use the 6603 components. These are for Triple set-ups.

If you intend to keep your bike a triple, then everything in the drivetrain must be the triple designation, hence the XX03.

If you want to change the crankset to a compact, then you can use the 6600 (double) equipment, but you will need to change the left (front shifter) to a double as well. The compact crankset, will give you virtually the same range as the triple and be much lighter and shift better.

The cassette: You can use any 10 spd cassette from Shimano or SRAM as long as the rear cog is no larger than 27. if you want to use a larger cog like a 28, then you will have to use the 6700 group, assuming yoiu want to stay with shimano ultegra.

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1 Answer

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Hope this helps,
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