Hi,

I'm in the process of upgrading my bike and need a new front Derailleur and was looking at "Shimano XT Front Derailleur Top Swing M770" my setup is 28-38-48t on the front with a 14-28t 6 geared back. I basically need this new derailleur for my current setup but to also allow me to change to a 9gear 11-28t on the back with the slimmer chain. Does anyone know if this Derailleur will do the job or is there any others which are more suitable?