Topeak Threadless Nut Setter - TPS-SP25
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Product Information
Full details
The Topeak Threadless Nut Setter (TPS-SP25) is an essential tool for professional mechanics and home bike builders looking to install star-flanged nuts into 1-1/8 inch threadless headset systems with precision. Its key benefit lies in the repeatable, secure seating of the nut, ensuring a stable steering setup; however, it is specifically designed for 1-1/8 inch systems only and will not work with alternative steer tube sizes or fork types.
All features
| Model Part Number | TPS-SP25 |
|---|---|
| Brand | TOPEAK |
Extended Product Information
FAQs
Can I use this on a 1-inch headset?
No, this tool is specifically designed for 1-1/8 inch systems.
Is this tool suitable for carbon fiber steer tubes?
No, you should never use a star nut setter on a carbon fiber steer tube. Carbon steer tubes require specific expansion plugs.
Does this tool come with a mallet?
No, the tool does not include a mallet; you will need to use your own rubber or plastic-faced mallet.
How deep should the star nut be set?
Generally, it should be set at least 10-15mm below the top of the steer tube to ensure the headset cap bolt has sufficient clearance.
What material is the handle made of?
The handle is constructed from high-quality, engineering-grade plastic for durability and grip.
Troubleshooting
Star nut is not going in straight
Ensure the tool is held perfectly vertical during the strike and that the nut is properly seated on the tool's rod before beginning.
Tool feels loose or slips during installation
Check if the internal threads of the star nut or the tool's threaded rod are damaged or dirty; clean and re-thread carefully.
Pros and Cons
Pros
- Durable hardened steel construction for long-term reliability
- Ensures accurate, level installation of star-flanged nuts
- Simple, intuitive operation for quick assembly
- Robust weight provides effective driving force
Cons
- Limited to 1-1/8 inch steer tubes only
- Requires a hammer or mallet for operation
- Not compatible with carbon fiber fork steer tubes
Setup, Compatibility & Care
This tool is compatible exclusively with 1-1/8 inch threadless headset steer tubes. It is not intended for use with carbon fiber steer tubes, as the metal expansion mechanism required for those systems is entirely different. For care, wipe the tool down after use to remove any metal shavings or debris. Store the tool in a dry, temperate environment to prevent oxidation on the steel components. Regularly inspect the threaded tip for any signs of stripping to ensure a secure connection with the star nut during each installation.