Description
The Park TNS-1 1 in / 1-1/8 in Star Nut Setter is a precision bike tools accessory designed to install star-fangled nuts squarely and at the correct depth in threadless headset systems. Built for use on 1 inch and 1-1/8 inch fork steerers, it is a dependable choice for home mechanics and shop service alike.
- Fits threadless headset systems using 1 in and 1-1/8 in fork steerers
- Compatible with standard M6 threaded star-fangled nuts
- Designed for common road, mountain, hybrid, and commuter bike headset setups
- Park TNS-1 is intended for traditional star nuts, not compression plugs used in many carbon steerers
- Ideal for mechanics searching for misc. tools Park TNS- in in star nut for fork and headset service
Manufactured by Park Tool USA, the TNS-1 helps align the star nut during installation so it starts straight and seats consistently, reducing the chance of a crooked fit that can affect headset preload. The tool threads directly onto a standard M6 star nut, then is tapped into place with a hammer for controlled positioning. This is a shop-grade specialty tool rather than a generic improvised solution, making it a smart addition to any bench that handles fork swaps, headset service, or new bike builds. If you need a reliable Park Tool USA Park TNS- in in star setter, this tool offers straightforward use with moderate DIY difficulty.
OEM-quality Park Tool performance with easy DIY installation and fast shipping from our warehouse.
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