Shimano Dura-Ace ST-R9120 Shifter Only (Disc Brake) Size:Left Shifter Only This kit is designed for

This kit is designed for use on bikes with a 1x drivetrain with a rear derailleur or internally geared hub

are optimized for protection at the lowest weight possible

Mandible is the top Arundel model

This silica may cause minor cosmetic blemishing

BR-RX810-R

Shimano Dura-Ace ST-R9120 Shifter Only (Disc Brake) Size:Left Shifter Only This kit is designed forCombining SHIMANO's well praised hydraulic disc brake technology with light action mechanical shifting, the DURA ACE R9120 levers have a shorter lever stroke, expanded reach adjust, and lighter front shift action. Specifications Mechanical Shifting with Hydraulic Brake Hoses Quick and intuitive rear shifting operation Shorter lever stroke Redesigned internal shifting unit Lighter front shifting operation Redesigned front system with new front