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GhostBikes.com£26.99Visit shop Kyb 129996000501 - 50/18Mm Rear Shock Service Kit For Sherco Sef-R 250 2019-2021 Rear
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The KYB 50/18mm Rear Shock Service Kit is an essential maintenance solution for motorcycle owners looking to restore their rear suspension performance. Designed for mechanics and serious riders performing DIY maintenance, this kit replaces critical seals and bushings to prevent contamination and internal wear. While it provides high-quality components for a rebuild, users should be prepared for the technical requirement of disassembling and bleeding the rear shock system accurately.
| Model Part Number | 13140822 |
|---|---|
| Brand | KYB |
No, this kit includes only the seal head, bush, and sealing components. You will need to purchase high-quality suspension fluid separately.
No, it is specifically designed for 50/18mm configurations. Check your shock manual to verify dimensions.
Yes, you will need a spring compressor, seal drivers, and a vacuum bleeder or specific bleeding tools for your shock model.
Service intervals depend on riding conditions, but generally, a full shock rebuild is recommended every 40-50 hours of competitive riding.
It is not recommended. Rear shocks contain pressurized nitrogen gas which can be dangerous if handled incorrectly. Consult a professional if you lack experience.
Inspect the shock shaft for microscopic pitting or scratches. A damaged shaft will immediately cut new seals.
Ensure all air was removed during the fluid bleeding process. Trapped air pockets can cause significant performance irregularities.
This kit is compatible with 50/18mm KYB rear shock assemblies. Installation requires the removal of the shock from the motorcycle and the use of a spring compressor and seal-driving tools. It is recommended to perform this service in a clean environment to prevent any grit from entering the internal assembly during reassembly. Always ensure the shaft surface is inspected for pits or deep scratches before installing the new seals, as damaged shafts will destroy new seals prematurely. After installation, bleed the system thoroughly to remove trapped air bubbles, which can cause erratic damping.
