R539 Front Derailleur Options:R539 Front Derailleur 9-Speed Triple 52/42/30T, Braze-On, Shimano Compatible scale-tickling 685-gram frame—15% lighter than

scale-tickling 685-gram frame—15% lighter than the Tarmac SL7 and lighter than anything else on the World Tour*

We tossed gravel geometry status quo out the window

The Specialized Offset model is most suitable for Specialized Turbo systems using the ISIS mount including: Levo

Not only is it the fastest in the tunnel

R539 Front Derailleur Options:R539 Front Derailleur 9-Speed Triple 52/42/30T, Braze-On, Shimano Compatible scale-tickling 685-gram frame—15% lighter thanFull metal construction provides stiffness and durability in this Shimano 9 speed road compatible front derailleur. Designed for use with 52 42 30t chainrings