Hope Pro 4 Freehub Body - SRAM XD
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Merlin Cycles£82.99Visit shop Hope Pro 4 Replacement Freehub Body - 11 Speed / Xx1 / Xd
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Merlin CyclesHope Pro 4 Replacement Freehub Body - 11 Speed / Xx1 / Xd
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£82.99
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Hope Pro 4 Freehub Assembly XX1/XDFree delivery in 1–3 days£90.00Visit shop →
Product Information
Full details
The Hope Pro 4 Freehub Assembly (SRAM XD) is a premium replacement component engineered for riders who utilize the Hope Pro 4 hub system and require compatibility with SRAM XD 11-speed cassettes. It offers an excellent balance of rapid engagement and long-term durability thanks to its refined 4-pawl, 44-tooth ratchet mechanism. While it provides a superior upgrade or replacement over standard units, users should be aware that it is exclusively designed for the Hope Pro 4 platform and is not backward compatible with earlier Pro 2 or Pro 3 hubs.
All features
| Model Part Number | HUB537 |
|---|---|
| Brand | Hope |
Extended Product Information
FAQs
Can I use this with a Pro 2 or Pro 3 hub?
No, this freehub body is specifically designed for the geometry and ratchet system of the Hope Pro 4 hub only.
Does this include the bearings?
Yes, the assembly comes pre-equipped with sealed stainless steel cartridge bearings.
What type of lubricant should I use for the pawls?
Use a light freehub oil or a specific high-quality grease recommended by Hope to ensure the pawls do not stick.
Is this compatible with 12-speed SRAM cassettes?
The XD standard is compatible with both 11 and 12-speed SRAM cassettes, but this specific unit is optimized for the Pro 4 hub interface.
How often should I service the freehub?
It is recommended to inspect and lubricate the freehub internals every 6 months, or more frequently if you ride in extremely wet or muddy conditions.
Troubleshooting
Freehub feels sluggish or resistant when coasting
Clean the pawls and ratchet ring thoroughly, then re-apply a light layer of manufacturer-approved lubricant.
Audible clicking or grinding noise under load
Inspect bearings for play or roughness; replace if the movement feels gritty. Ensure the freehub is fully seated.
Cassette has movement or wobble
Check that the lockring is tightened to the correct torque specification for the SRAM XD cassette.
Pros and Cons
Pros
- Rapid 8.2-degree engagement for near-instant power transfer
- High-quality sealed stainless steel bearings for longevity
- Lightweight yet durable construction designed for mountain biking
- Simple assembly process for quick cassette swaps or maintenance
Cons
- Compatible only with Hope Pro 4 hubs
- Requires specific tools for hub disassembly and bearing servicing
- Not intended for use with non-XD standard cassettes
Setup, Compatibility & Care
Installation requires basic bike maintenance tools, including a cassette tool and potentially a rubber mallet to seat the freehub body onto the hub axle. Ensure the pawls are lightly lubricated with a high-quality freehub oil or grease recommended by Hope before installation to ensure the ratchet mechanism operates silently and smoothly.
Compatibility Table
| Attribute | Specification |
| :--- | :--- |
| Hub Platform | Hope Pro 4 |
| Cassette Standard | SRAM XD 11-Speed |
| Pawl System | 4-Pawl |
| Engagement | 44-Tooth / 8.2 Degrees |
Care involves periodically removing the freehub body to inspect the bearings and pawls. Clean away any old debris or thickened grease and apply a fresh, thin layer of lubricant to prevent premature wear on the pawls and teeth.