KS Integra Oil Pressure Cartridge - 34.9mm 175mm 2020+ MPFN-11A00029 }Shimano SM-JC41 Di2 Internal Frame

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KS Integra Oil Pressure Cartridge - 34.9mm 175mm 2020+ MPFN-11A00029 }Shimano SM-JC41 Di2 Internal FrameKS Integra Oil Pressure Cartridge 34. 9mm 175mm 2020+. Cartridges fully replace the functional mechanism of KS dropper posts. Pick the model and length of drop for the post you need to service. These are also called "Oil Pressure Sticks" and "Air Pressure Sticks" In KS Service Documentation. Fully replace the functional mechanism of KS dropper posts May not work with OEM dropper posts