Soldato
An X.9 shifter will not work with a Shimano rear derailleur.
You generally need to match manufacturer with shifter and rear derailleur.
edit: Also, if you're putting a double ring up front you can use a medium length rear derailleur.
You generally need to match manufacturer with shifter and rear derailleur.
edit: Also, if you're putting a double ring up front you can use a medium length rear derailleur.