Some think it's a gimmick, but this thing really worked well. The fit tolerance of tool to BB is very good. Be sure to rotate the tool and don't push grease too hard. I highly recommend it to anyone running CK bottom bracket. Out with the old dark grease, in with the new.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: King Injector Tool is legit!