Shimano tiagra 4600 2x10 speed sti shifter setoriginal shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity easy operation design lever compact lever bracket hood is made from soft rubber and anatomically shaped to allow easy braking and shifting regardless of hand position featuresarced travel on the shift lever always keeps the lever in reach when sweeping shifts across the cassette10 speed precision road shiftingadjustable rea