R539 Front Derailleur Options:R539 Front Derailleur 9-Speed Triple 52/42/30T, Braze-On, Shimano Compatible Replacement hub bearings for Ritchey

Replacement hub bearings for Ritchey hubs

FS3 Fit System & Occipital Base Adjustment optimizes comfort by personalizing fit to individual head shape

thanks to an updated dust wiper seal design and increased oil volumes

They also protect from dust and grease to keep riders and bikes cleaner

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

R539 Front Derailleur Options:R539 Front Derailleur 9-Speed Triple 52/42/30T, Braze-On, Shimano Compatible Replacement hub bearings for RitcheyFull metal construction provides stiffness and durability in this Shimano 9 speed road compatible front derailleur. Designed for use with 52 42 30t chainrings