Zipp Spring and Pawl Set ZM2

You should consider replacing these parts if you notice slipping under load, inconsistent engagement when you start pedaling, or a dull, sluggish sound from the rear hub. These are clear signs that the internal mechanism is worn and no longer catching reliably.

No, this specific kit is engineered exclusively for the Zipp ZM2 hub system. It will not fit older Zipp hub models or other manufacturers' hubs, so please verify your hub model before purchasing.

While you don't need proprietary tools, you will need basic shop tools like a cassette removal tool, a cone wrench, and a set of hex keys to access the hub internals. It is also highly recommended to have the correct hub grease on hand to ensure smooth operation after reassembly.

If you are comfortable with basic drivetrain maintenance, this is a manageable DIY task. However, if you are unsure about removing the freehub body or handling small springs, a professional mechanic can install these parts quickly and ensure everything is seated correctly.

This kit contains the exact replacement springs and pawls required to refresh your ZM2 hub's engagement mechanism. It provides the necessary components to restore the factory-spec power transfer and reliability of your rear wheel.