I have Sora front derailleur (bottom-pull), and I want to use friction shifter with it. I installed Dura Ace bar end shifters (on thumb shifter mount).
No matter how I adjust the tension the shifter doesn't hold position. It always pulls to the smallest chain ring. I wonder is there anybody who come across something this.
I begin to think the combination of derailleur and shifter is not compatible. Any thoughts will be appreciated.