FSA HG Freehub Body

The 6-jaw system increases the number of contact points within the hub, which results in faster, more immediate power transfer when you pedal. This is particularly noticeable during technical climbs or when you need to ratchet your pedals to clear obstacles on the trail.

This freehub body is designed for standard HG (HyperGlide) mountain bike drivetrains. If your current cassette is compatible with a standard Shimano HG freehub, it will fit this component.

Steel is significantly more durable and resistant to the 'notching' or gouging that can occur when cassette cogs dig into the freehub body under high torque. While it adds a small amount of weight compared to aluminum, it offers superior longevity for aggressive trail riding.

If you are comfortable performing basic drivetrain maintenance and have the necessary tools to remove your cassette and hub end caps, this is a straightforward installation. However, if you are unsure about hub servicing, a shop can handle the swap quickly.

No, this is the freehub body shell. You will need to reuse your existing bearings or install new ones during the replacement process.