Backorder: This item is currently not in stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.
i9 Hydra Replacement or Conversion
Replace your existing Industry Nine Hydra mountain freehub with this complete kit.
If converting from Shimano Micro Spline, please note factory spec involves HAX2631 (QR) or HAX2637 (12x).
- Available in SRAM XD, Shimano Microspline, Shimano HG 9/10/11 Speed, and Single Speed
- Compatible with Hydra mountain rear hubshells
- Freehub body
- Bearing spacer
- Freehub body seal
- Drive-Side Endcap (MS only)
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Ordered by Most Relevant First
Easy way to switch wheel sets
If you already have i9 hydra hubs, having this freehub can make it easier to swap cassettes depending on SRAM/Shimano. Also, YouTube has tutorials on how to service and maintain these freehubs, including which grease and oils to use to not only keep it moving but to add or omit the distinct i9 buzz. They also sell the pawls, bearings and springs to make them good as new. Make sure you don't get these for i9 1/1 hubs!
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