Shimano ST-4500 Tiagra 2X9 Speed STI Road Bike Shifters Brake Levers R or L. Shimano ST-4500 Tiagra 9 Speed Double STI Road Bike Shifters Brake Levers New. 9 speed right shifter. 2 speed left shifter. Note: Right or left shifrer are separate for sale, if you want 1 set, please order right and left shifters.