Shimano ST-EF505 Bleed Screw - M5 x 4.5 mm
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Full details
This guide is for owners of Shimano ST-EF505 brake levers requiring a replacement bleed screw. Its key benefit is ensuring a secure and leak-free seal during brake bleeding, a critical maintenance task. A caveat is that this is a specific replacement part, not a universal solution. The product is a precisely manufactured M5 x 4.5 mm bleed screw designed to fit Shimano ST-EF505 levers, complete with an O-ring for optimal sealing.
All features
| Model Part Number | Y0GG98020 |
|---|---|
| Brand | SHIMANO |
Extended Product Information
FAQs
What brake levers is this bleed screw for?
This bleed screw is specifically designed for Shimano ST-EF505 brake levers.
What are the dimensions of this bleed screw?
The dimensions are M5 x 4.5 mm.
Does it come with an O-ring?
Yes, this bleed screw includes an O-ring for a secure seal.
Can I use this on other Shimano brake levers?
It is not recommended. This screw is specifically designed for the ST-EF505 model and may not fit or seal properly on other levers.
How do I prevent leaks when bleeding my brakes with this screw?
Ensure the O-ring is in good condition and properly seated, and thread the screw in carefully until snug. Do not overtighten.
What should I do if I lose the O-ring?
If the O-ring is lost or damaged, you will need to replace the entire bleed screw assembly to ensure a proper seal.
Troubleshooting
Bleed screw won't thread into the lever.
Ensure you are using the correct bleed screw for ST-EF505 levers (M5 x 4.5 mm). Check the threads on both the screw and the lever for damage or debris. Clean thoroughly before attempting to thread.
Hydraulic fluid is leaking around the bleed screw during bleeding.
Verify the O-ring is present, properly seated, and not damaged. Ensure the bleed screw is tightened sufficiently (hand-tight plus a quarter turn is usually enough) without overtightening, which could damage the threads.
O-ring is missing or damaged.
The bleed screw must be replaced. Purchase a new Shimano ST-EF505 bleed screw with an O-ring.
Pros and Cons
Pros
- Ensures a secure seal during brake bleeding.
- Designed for specific Shimano ST-EF505 levers for perfect fit.
- Includes O-ring for immediate use and a reliable seal.
- Helps maintain brake system integrity and performance.
- Relatively inexpensive part for essential maintenance.
Cons
- Not compatible with other Shimano models or brands.
- Requires careful handling to avoid stripping threads.
- May require a specific bleed kit for installation.
- Loss of the O-ring can compromise the seal.
- A small part that can be easily misplaced.
Setup, Compatibility & Care
Compatibility: This bleed screw is specifically designed for Shimano ST-EF505 brake levers. It is not guaranteed to fit other Shimano models or brake systems from different manufacturers.
Setup:
- Ensure the bleed port on the ST-EF505 lever is clean and free of debris.
- Carefully thread the M5 x 4.5 mm bleed screw into the port. Hand-tighten initially to avoid cross-threading.
- If using a bleed kit, attach the appropriate adapter to the bleed screw.
- Once bleeding is complete, carefully remove the bleed screw and install the protective cap.
Care:
- After use, clean the bleed screw with isopropyl alcohol or a mild degreaser to remove any hydraulic fluid residue.
- Inspect the O-ring for any signs of wear or damage. Replace it if compromised.
- Store the bleed screw in a safe place, preferably with its protective cap, to prevent loss or contamination.