Shimano ST-R9120/ST-R9170 ST-R8020/ST-R8070 Bleed Screw and O-Ring

For use with Shimano Dura-Ace ST-R9120 11 speed shifters.This Bleed Screw & O-Ring can also be used on the following shifters:- Shimano Dura-Ace Di2 ST-R9170- Shimano Ultegra Di2 ST-R8070- Shimano...