This is a Bleed Port Screw & O-Ring it for Shimano hydraulic brake levers.
Features:
- Replaces lost or broken bleed port screw & o-ring
- Take care when installing. Do not overtighten. It is very easy to strip
- 105 and Dura-Ace/Ultegra screws can generally be used interchangeably; however, the hex key size required may be different
Compatibility:
- Dura-Ace/Ultegra: Dura-Ace ST-R9120/Ultegra ST-R8020
















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