Shimano Dura-Ace ST-R9120 Shifter Only (Disc Brake) Size:Left Shifter Only The only pedal system to

The only pedal system to provide independent fore-aft

Paris-Roubaix

Quick and intuitive rear shifting operation

The tire’s 40mm width was carefully selected to be most effective with its tread pattern while also fulfilling riders’ evolving preferences for wider tires for gravel events and off-pavement riding

enabling you to up-shift by up to 3 sprockets in a single movement

Shimano Dura-Ace ST-R9120 Shifter Only (Disc Brake) Size:Left Shifter Only The only pedal system toCombining 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