Shimano ST-R9270 Bleed Screw & O-Ring
The Shimano ST-R9270 Bleed Screw & O-Ring is a genuine Shimano replacement part for the Dura-Ace ST-R9270 2x12-speed Di2 hydraulic brake/shift lever. It seals the hydraulic bleed port on the lever and is used during brake servicing or when replacing a damaged or leaking bleed screw seal. Shimano identifies the part as Y0MX98020.
Key Features
- Genuine Shimano replacement part
- Designed for Dura-Ace ST-R9270 hydraulic Dual Control Levers
- Includes bleed screw and O-ring
- Provides a secure seal at the lever's hydraulic bleed port
- Suitable for brake bleeding and routine lever servicing
- Black finish
- Small, workshop-friendly replacement component
Specifications
| Specification |
Details |
| Brand |
Shimano |
| Series |
Dura-Ace |
| Compatible Lever |
ST-R9270 |
| Speed |
12-speed |
| System |
Di2 Hydraulic Disc Brake |
| Part Number |
Y0MX98020 |
| Component |
Bleed Screw & O-Ring |
| Colour |
Black |
| Type |
Genuine Shimano spare part |
| Barcode / EAN |
4550170153229 |
Shimano's official ST-R9270 exploded diagram lists Y0MX98020 as item No. 2, specifically the Bleed screw and O-ring.
Compatibility
The Y0MX98020 bleed screw and O-ring is also used on the Shimano Ultegra ST-R8170 hydraulic Di2 lever and selected GRX hydraulic levers.
Important: This is the lever bleed screw, not the bleed screw/bleed nipple used on the BR-R9270 brake caliper. The caliper uses separate service parts.
Best Suited For
- Shimano Dura-Ace ST-R9270 servicing
- Hydraulic brake bleeding
- Replacing a damaged bleed screw
- Replacing a worn or leaking O-ring
- Bicycle workshop maintenance
- Restoring the hydraulic seal at the brake lever
