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PostPosted: Tue Jun 24, 2014 3:06 pm 
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Joined: Fri Jun 01, 2012 6:40 pm
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I'm thinking of building up my new rig with the yet-to-be-released hydraulic/mechanical Shimano STI's and disc brakes. The frame has the cables routed over the top. I'd prefer to avoid using a pulley which makes my most attractive option the slightly older CX70 FD from Shimano. Will this FD work with the 11 speed chain ring spacing and cable pull?


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PostPosted: Tue Jun 24, 2014 7:20 pm 
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Location: Houston, Texas
Not exactly the answer you are looking for but having run a DA FD-9000 front derailleur with DA 7900 shifters, I think you will find that with the CX-70, as a result of spacing and cable pull, no amount of adjustment will prevent cable rub at one end of the range or the other.

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Posted: Tue Jun 24, 2014 7:20 pm 


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PostPosted: Wed Jun 25, 2014 1:51 am 
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I always have the umlenker option but something without those hacks would be far better imo. Top-pull fd's just don't seem to be that common...


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PostPosted: Tue Jul 08, 2014 10:42 am 
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I am having the same issue with the front derailleur, seeing as my frame does not have a mount for a cable pulley. For Shimano the only option is the CX70 front derailleur, although it is made for 46 chainrings. As such you might need to shave of some of the cage, to make it work with bigger rings.

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PostPosted: Tue Jul 08, 2014 2:39 pm 
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If you look here (http://theradavist.com/2013/06/beautiful-bicycle-my-geekhouse-woodville-touring-bike/#1) you will see John Watson's touring. He somehow managed to make a SRAM Force FD work with a top pull system. No idea how he did that :noidea: .

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