Originally Posted by
garysol1
Bad move..... Shimano hidden cable systems are very sensitive to what cables you use. Get your LBS to get you the Dura-Ace 7900 Derailleur Cable and Housing Set. The inner cable is treated with PTFE and is a must for longtime shift quality with this system. Replace both the inner and outer cable as your broken cables could have torn up the inner sleeve of your your housing. I am sure many will disagree with me on this but I am telling you this from experience.
EDIT...... I just checked Shimano's service book and they say the PTFE cable is only NEEDED on the 7900 series and not on the 6700. I am thinking that is maybe because the 7900 is a zero loss shifter and the 6700 is not. I still think though that with the bend of the cables you cant go wrong with the slickest cable possible...
Shimano may not say it, but I will. 6700 rear shifting is finicky.
My Roubaix came with Jagwire L3 (decent cable, but nothing fancy). Within 2500 miles, Rear shifting was still good, but very high effort. I decided to re-cable since I wasn't happy with the original job anyway (too tight on the rear loop, etc.). Replaced with L3 again. I'm at about 6,500 miles (4000 on new cables) and shifting effort is pretty high again (probalby 3x the effort of my 105-equipped bike). It still shifts well, but it seems to get harder and harder (but not as bad as the first cables yet). My next re-cable (probalby soon since I'm switching out bars), I'll trying some slicker housing to see if it last longer. I'm not crazy about having to put new housings on my bike several times a year.