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Halo Spin Doctor Freehub Body

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Questions & Answers (2) Q & A
- Replacement unit for Spin Doctor
- 8 / 9 speed Shimano type spline compatible

Important Tech Note:

Spin Doctor rear hubs use 'sealed' cartridge bearings as the main load carrying bearings for the hub, however, the Freewheel mechanism bearings (that are only operating when you are freewheeling) are a non adjustable looseball type. Please consider that they can (and should) be lubricated regularly to maximise performance and durability.
Further, Halo do not advise to run chains 'tight' when using a cassette hub for Single Speed type use, as this will cause undue strain on the freewheel bearings, that are only designed to operate under minimal chain load from sprung gear mechanisms.

Lube Note: The looseball system Freehub bearings and pawl mechanism on Pre 2007 hubs can easily be lubricated with thick oil or, with grease using a Morningstar Tooling developed Halo grease/lube injector tool to provide a positive performance and an extended life. Remove Cassette lockring and carefully pull-off freehub righthand seal to expose the cartridge bearing.
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Questions & Answers (2)
Will It Also Take Also 10 Speed Cassette? Do You Have Similier Freehub Body For 10 Speed Cassette?
17 Jan 2017

This freehub body is suitable for 10spd cassettes as well as they take up the same space as 8 and 9spd cassettes.

Hi, A Question About The Halo Spin Doctor Freehub Body
25 Jul 2014
Is this the version of the freehub body which takes a sealed cartridge bearing (as opposed to loose ball bearings) to act as the wheel bearing? I mean the actual wheel bearing, not the tiny bearings within the freehub body pawl / ratchet mechanism itself. Many thanks.

Yes, this is the version that is designed to be used with sealed hub bearings.