Park Tool Spoke Wrench - SW-13
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Product Information
Full details
The Park Tool SW-13 is a professional-grade, double-ended spoke wrench specifically engineered for cyclists who maintain Mavic wheel systems. It is the go-to tool for truing and adjusting 6-spline nipples found on high-performance wheels, offering a secure, slip-free fit that prevents damage to delicate components. While it is an essential addition to any mechanic's kit for Mavic maintenance, it is specialized equipment and will not work on standard square-nipple wheels.
All features
| Model Part Number | QKSW13C |
|---|---|
| Brand | Park Tool |
Extended Product Information
FAQs
Will this work on standard square nipples?
No, the SW-13 is designed exclusively for 6-spline Mavic nipples and will not interface with standard square spoke nipples.
Is this equivalent to the Mavic M40652 tool?
Yes, the small end of the SW-13 matches the sizing of the M40652 tool.
Can I use this on non-Mavic wheels?
Only if those wheels use the exact same 6-spline nipple specifications as the supported Mavic models.
How do I care for the vinyl handle?
Keep the handle away from harsh solvents or extreme heat, which can cause the vinyl to peel or degrade over time.
Does the SW-13 work on R-Sys wheels?
Yes, the smaller end of the tool is specifically designed for the nipples found on R-Sys wheel systems.
Troubleshooting
Tool feels loose on the nipple
Verify you are using the correct end. Mavic uses different spline diameters; ensure the wrench is fully seated before turning.
Nipple will not turn
Apply a high-quality penetrating oil to the nipple threads and let it soak for several minutes before attempting to adjust.
Pros and Cons
Pros
- Perfect fit for specific Mavic 6-spline nipples
- Durable, long-lasting forged steel construction
- Dual-ended design replaces multiple specialized tools
- Ergonomic vinyl grip for better control
Cons
- Limited compatibility; will not work on standard square-style nipples
- Only fits specific Mavic wheel systems
- Not intended for heavy-duty rim building, only truing and adjustment
Setup, Compatibility & Care
This tool requires no setup; however, identifying the correct end is crucial before applying torque. Always match the wrench end to the specific spline size of the nipple to avoid stripping.
Compatibility Table
| Wrench End | Nipple/System Compatibility |
| :--- | :--- |
| Small End | 5.5mm Spline / R-Sys Wheels |
| Large End | 9mm FORE Adapters / XM819, EX823 |
To ensure the longevity of your SW-13, keep the tool clean and dry. While the finish is durable, avoid using it to loosen heavily corroded nipples without first applying a penetrating oil, as excess force can damage both the tool and the nipple.