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I removed 2 King bottom brackets for excessive drag. One was pf30 with 24mm gxp adapters, once I set pre load to remove play the crank would hardly spin. Same issue with a king t47 bb. I have installed and setup a lot of bbs and never ran into issue. Never installing a King bb or recommending one ever again. Installed a hawk racing t47 on one bike and a wheels manufacturing thread together PF30 for gxp on the other, near zero bearing drag without worrying about perfect pre load.
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