Jagwire Sport Mineral Bleed Kit - Mineral Oil
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Product Information
Full details
This Jagwire Sport Mineral Bleed Kit is designed for cyclists who maintain their own hydraulic disc brakes, offering a high-quality, straightforward solution for bleeding mineral oil systems. Its key benefit is providing essential tools for a clean and effective brake bleed at a great value. A potential caveat is its specific compatibility with mineral oil systems only, indicated by red seals.
All features
| Model Part Number | JW-WST087 |
|---|---|
| Brand | Jagwire |
Extended Product Information
FAQs
What type of brake fluid is this kit for?
This kit is specifically designed for use with mineral oil based brake fluids only. The red seals on the fittings are a visual indicator for this.
Is this kit compatible with DOT fluid brakes?
No, this kit is not compatible with DOT fluid brake systems. Using it with DOT fluid can damage the seals and components.
Will this kit work with my SRAM brakes?
This kit includes an M7 adapter primarily for Shimano systems. While some SRAM systems might use similar fittings, it's best to confirm compatibility with your specific SRAM brake model. This kit is best suited for Shimano mineral oil brakes.
How often should I bleed my brakes?
Brake bleeding frequency depends on usage and conditions, but a general recommendation is every 6-12 months, or whenever you notice a decrease in braking performance or a spongy lever feel.
Can I use the syringe for both pushing and pulling fluid?
Yes, the syringe can be used to push new fluid into the system or pull old fluid out, depending on the specific bleeding procedure you are following.
What does the stopper plug do?
The stopper plug is used with the cup fitting to prevent any excess fluid from spilling out of the cup when it is not actively collecting fluid.
How do I clean the syringes after use?
After use, run clean mineral oil through the syringe to flush out the old fluid, then disassemble and wipe all components with a clean, lint-free cloth. Ensure they are completely dry before storage.
Troubleshooting
Spongy or soft brake lever after bleeding
Ensure all connections were tight during the bleed process. Re-bleed the system, paying close attention to removing all air bubbles. Check for any potential leaks in the system (hoses, fittings, seals).
Fluid leakage from bleed port or lever fitting
Verify that the syringe or cup fitting is securely attached. Ensure O-rings or seals on the fittings are clean and in good condition. For lever fittings, make sure the stopper plug is fully seated.
Unable to push fluid through the system
Check for blockages in the bleed port, hose, or lever. Ensure the brake lever is being actuated correctly (if applicable to the bleeding procedure). Confirm the correct fluid type is being used.
Pros and Cons
Pros
- Provides a complete set of essential tools for mineral oil brake bleeding.
- High-quality components ensure reliable performance.
- Designed for ease of use, even for home mechanics.
- Clear identification for mineral oil systems prevents misuse.
- Offers excellent value for DIY brake maintenance.
Cons
- Strictly for mineral oil systems; incompatible with DOT fluid brakes.
- Includes only one syringe, which may be limiting for some advanced procedures.
- Requires prior knowledge of brake bleeding procedures.
- Shimano M7 adapter may not fit all brake lever designs, even within Shimano.
Setup, Compatibility & Care
Compatibility:
This kit is designed for hydraulic disc brake systems using mineral oil fluid. The included M7 adapter is compatible with most contemporary Shimano mountain and road hydraulic brake levers. Always verify your brake system's fluid type before use. The red seals indicate mineral oil compatibility.
Setup:
- Clean the brake lever and caliper bleed ports.
- Attach the cup fitting with the stopper plug to the brake lever.
- Attach the syringe to the caliper bleed port.
- Follow specific instructions for your brake system regarding fluid introduction and old fluid removal.
Care:
- After each use, thoroughly clean all components, especially the syringes and fittings, to prevent fluid contamination.
- Store the kit in a clean, dry place.
- Ensure the stopper plug is used when the cup is not actively in use to prevent spills and contamination.
- Inspect seals for wear or damage and replace if necessary.