Replacement Freehub Bodies and Service Parts for Stan’s E-Sync Hubs.
Stan’s E-Sync Freehubs and Freehub Parts cover replacement cassette bodies and related service components for compatible E-Sync rear hubs.
The available options are not interchangeable. Select the exact freehub standard or replacement part required for your hub, cassette and axle configuration.
Choose the Correct Freehub Standard
The freehub body determines which cassette can be fitted to the wheel. Depending on the available option, E-Sync freehub bodies may suit Shimano HG, Shimano Micro Spline or SRAM XD/XDR cassette systems.
These standards use different cassette interfaces. A Micro Spline cassette will not fit an HG body, while an XD or XDR cassette requires the appropriate SRAM-compatible driver.
Check the cassette model and existing freehub before ordering. Do not rely solely on the number of cassette sprockets, as different freehub standards can support drivetrains with the same number of gears.
E-Sync Hub Compatibility
These parts are primarily intended for Stan’s E-Sync hubs. Some E-Sync freehub components can also be used to upgrade compatible Stan’s Neo and Neo Ultimate hubs, but the correct conversion parts and end caps may be required.
Hub shell, brake-mount type, axle spacing and cassette standard can all affect compatibility. Match the part number where possible and contact us before ordering if the existing hub cannot be identified clearly.
Replacement Freehub Parts
Individual seals and other freehub components allow a compatible E-Sync hub to be serviced without replacing more of the assembly than necessary.
The E-Sync freehub seal is specific to E-Sync freehub assemblies. It should not be assumed to fit M-Pulse, standard Neo or Neo Ultimate freehubs unless those hubs have been converted using the appropriate E-Sync components.
Installation and Servicing
Freehub replacement should include an inspection of the bearings, pawls, ratchet ring, seals, axle and end caps. Worn or damaged parts elsewhere in the hub can cause play, roughness or unreliable engagement even after a new freehub is installed.
Use only the lubricant and installation method recommended for the hub. Excess grease around the pawls can slow engagement, while incorrect end caps or axle parts can affect bearing preload and wheel fitment.
Key Features
- Replacement freehub bodies and service parts for compatible Stan’s E-Sync hubs
- Cassette-interface options may include Shimano HG, Micro Spline and SRAM XD/XDR
- Allows cassette-standard changes where the hub configuration permits
- Individual service components help keep existing hubs running
- Selected components may support compatible Neo and Neo Ultimate conversions
- Designed for the higher loads associated with E-Sync hub applications
Our Thoughts
This listing is useful when changing cassette standards or repairing an existing E-Sync freehub, but it is important to identify the hub before ordering. Similar-looking Stan’s hub parts are not necessarily interchangeable.
We recommend checking the part number, cassette interface, brake mount and rear-axle configuration. If the freehub has developed play or poor engagement, inspect the complete hub rather than assuming the freehub body is the only worn component.
Why Buy from Chain Reaction?
- Help identifying Stan’s hub and freehub parts
- Advice on cassette and driver compatibility
- Professional hub servicing available
- Independent Christchurch bike shop
- Nationwide New Zealand delivery
Specifications
- Brand: Stan’s
- Product range: E-Sync Freehubs and Freehub Parts
- Primary compatibility: Stan’s E-Sync rear hubs
- Possible cassette interfaces: Shimano HG, Shimano Micro Spline and SRAM XD/XDR, depending on selected option
- Neo and Neo Ultimate compatibility: Selected parts only; conversion components may be required
- Application: Freehub replacement, cassette conversion and hub servicing
- Important: Select the exact listed part required for your hub
