I have a 105 9 speed front derailleur. I am thinking about changing to Ultegra so my whole bike will be Ultegra. What is the difference between a 9 and 10 speed front derailleur? Can I use a 10 speed on my 9 speed bike? I now have a clamp on. Can I use the existing clamp and buy a braze on?
Thanks for all the help,