Specific for Industry Nine Hydra hubs, these are complete freehub body replacement kits that include bearings, springs and pawls.

Kits include:

• 1x Hydra freehub body shell
• 1x bearing spacer
• All Freehub body bearings
• 6x Hydra springs
• 6x Hydra pawls
• 1x freehub body seal

Microspline kits also include 1x drive side end cap

Part Numbers:

• Shimano HG = Industry Nine Part Number HKMFH01
• Shimano Micro Spline = Industry Nine Part Number HKMFH20
• SRAM XD Drive = Industry Nine Part Number HKMFH02