Halo Spin Doctor Grease InjectorClearance Product
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Halo/Morningstar Spin Doctor Grease Injector tool.
Push-in the Freehub injector tool into the end of the freehub and apply grease into the tool via a grease gun, until you can see a small amount grease purging out of the backside of the freehub.
This tool can also be used to purge a contaminated freehub of old lube, water and grit.
2007 series Spin Doctor rear freehubs have genuine Finish Line TFG37 grease packed inside, plus a "lube hole" concealed under the cassette sprockets. To lube the pawls and bearings, simply remove the cassette and insert a grease gun pointed nozzle and squeeze!