Chain rub
 

Hi , have a 2012 bike with 105 group (new and set up by LBS) and getting a lot of chain rub . When I'm in big ring in front I get chain rub in 8,9 and 10th gear in the rear. In the small ring in the front I get the same but I would expect some in 9 and 10th gear with the small front ring.
I went to shimano site and check out all the specs on the limits and cage alignment and all looks good . What I did try was adjusting the cable with the inline adjuster by the head tube and I moved that 10 full turns in both directions and it didn't move the cage at all, still not sure which way tightens the cable..
Any ideas **********??? I know I can bring it back to the LBS but I was hoping to get a few miles on it before I use my first FREE tune up..

First- If you drink the Shimano Kool Aid some rub is ok... Second- Only one tune up with the purchase? Spot adjustments are common and different systems will need care at different rates. Third- The current 10 spd systems are a LOT more sensitive to everything being spot on. Fourth- I use the cable to shift the ders (pulling on a stretch that's open, one reason to dislike internal routing) before dealling with cable tension and the lever's controlling the shift. This seperates the der aspects from the lever/cable ones. Fifth- some bikes need much more fine tuning of der positioning. Height off ring/angle of cage/ limit range and cable tension. There's a lot of variables going on and patients is needed to REDUCE the rub as much as possible. BTW even the crankset has an influence or the rings' straightness. Andy.

Sometimes the F/D might be set to high. Try lowering it just a bit, you would need to re-adjust cable tension when you do, you cam do that by adjusting the (as you all it) inline adjuster.

Hi, I have a Di2 on my main bike and love the auto trim . What I didn't know about this 105 shifters is there is a trim click in the shifter to move it slightly outward with out chaining rings (front) while in the small ring I can click over with the shifter ( like a half click adjustment) to move the cage outward just a little but not enough to send it over to the big ring and do the same from the big ring and it avoids all rub.. I didn't know there was a mid click in the FD shifter .. I like it ...

ducati hyp- Really? You didn't know about the lever's trim function? Sorry to express my surprise but that's like not knowing how to division without a calculator. Andy.

What's sad is that the dealer sold this bike and never reviewed this feature with their client.

10 full turns is a HUGE amount of adjustment - far more than any inline adjuster I've ever seen even has available. You were probably just twisting the adjuster on the cable and not actually affecting anything at all. You will see the length of the inline adjuster physically change as you turn it. If you aren't seeing that, then you aren't making any change. Sometimes the ferrule slips on the adjuster and it doesn't do anything when you turn it. You'll have to 'hold it still' while turning it to get it to actually move.

With that said, from the issue you describe, assuming the derailleur is positioned properly AND the limits are adjusted properly, you should only have to turn the barrel about 2 full turns to fix your issue. I suspect though that you have more issues.

Post #4 I'm all set thanks, I went back to small chain ring and adjusted the cable there to have no/slight tension ..All is good