Shimano FD-M3000 Acera Triple Front Derailleur 9s Top SwingThe Shimano FD-M3000 Acera Triple Front Derailleur is a fantastic upgrade or replacement to your worn out or broken triple front derailleur. Compatible with 9 speeds in the back in your Shimano 3x9 mountain setup. This is the top swing version and the max teeth in the front is 40t.689228338517