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 Post subject: RD9150 with Sram XG1190
PostPosted: Sun Mar 19, 2017 8:58 am 
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Joined: Tue Mar 18, 2014 10:13 pm
Posts: 462
Location: Great Southern Land
Anyone else running [or trying to] this combo? I am unable to get it shifting satisfactorily. Thought I had a faulty RD but I have 2 RD9150s and neither shift as they should [but one does sift better than the other] but will work "ok" with a 9000 series DA cassette. I now think it is a set up issue but cannot for the life of me work out what I am doing wrong..... I'm running a KMC 11sl chain. I believe I have followed Shimano's instructions correctly. I refitted my RD9070 and it shifts great............. any thoughts.
It's almost like the indexing is out. Sometimes it will not grab the next cog just chatter so I click to the next cog and it will jump the 2. Shifting to the 11th cog is also very hit and miss..........

Steve

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PostPosted: Sun Mar 19, 2017 9:08 am 
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Joined: Thu Jul 19, 2012 6:09 pm
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Location: Loveland, CO
On the 11th cog make sure the high limit screw is not set too high. On Di2 the derailleur will over shift only on be 11th cog. You should see the derailleur overshift, then one second later the derailleur will move up to the proper position on the 11th cog.

Also, the largest cog on the 1190 is made of aluminum and is thicker than the 9000 counterpart. This makes adjusting the rear derailleur indexing a bit trickier than the 9000 cassette.


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Posted: Sun Mar 19, 2017 9:08 am 


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PostPosted: Sun Mar 19, 2017 9:13 am 
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Joined: Thu Jul 19, 2012 6:09 pm
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Location: Loveland, CO
Also make sure your derailleur hanger is perfectly straight. I've found the 1190 cassette to be less forgiving on small derailleur misalignment than the Shimano cassette. I don't know the reason but I suspect the Shimano cogs are slightly thinner than the 1190 cogs.


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PostPosted: Sun Mar 19, 2017 10:05 am 
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Location: Great Southern Land
Thanks pdlpsher1, thicker cog may have a bearing but the puzzleing bit is just swaping back to the 9070 and all is good. Hanger is good, that was my first thing to look at, damn frustrating.

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PostPosted: Sun Mar 19, 2017 1:33 pm 
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Joined: Mon Jun 06, 2016 8:45 am
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It took me a while to dial in the indexing on my RD9150, but it's fine now.

When I took off my RD9070 I realized that I never bothered to set the stops - they were both fully wound out, but that worked fine too.

On the RD9150, I set the stops, but quite slack in that I don't think the derailleur ever actually touches them.

So I would say just keep playing with the trim; bias it one way, then the other, then count the clicks back to the middle.

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PostPosted: Sun Mar 19, 2017 6:04 pm 
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I'm running this combo on 2 different bikes. On one bike it's working perfectly - on the other it sometimes takes a second to shift properly.

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PostPosted: Sun Mar 19, 2017 8:54 pm 
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Location: Great Southern Land
Ok, looks as if I need to persevere a bit longer............ or just stay with the 9070

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PostPosted: Mon Mar 20, 2017 5:13 am 
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Joined: Thu Jul 19, 2012 6:09 pm
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Location: Loveland, CO
Perhaps Shimano has figured out a way to put a magnetic sensor in the 9150. It detects a 1190 in use and it switches to another software program designed to throw havoc at shifting :D


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Posted: Mon Mar 20, 2017 5:13 am 


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PostPosted: Mon Mar 20, 2017 5:35 am 
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Joined: Tue Mar 18, 2014 10:13 pm
Posts: 462
Location: Great Southern Land
pdlpsher1 wrote:
Perhaps Shimano has figured out a way to put a magnetic sensor in the 9150. It detects a 1190 in use and it switches to another software program designed to throw havoc at shifting :D


You are evil.............. :evil: :lol:

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