Allows for the simple, installation of Shimano Hollowtech (24mm) road cranks into PF30 frames without any additional adaptorsAllows for the simple, installation of Shimano Hollowtech (24mm) road cranks into BB30 or PressFit 30 bikes without any additional adaptorsThis is an adaptive BB with bearings; There is no need for any other bottom bracket part or adaptorPress in cups and install crank per Shimano's instructionsFor Hollowtech II spindle cranksItem SpecificationsWeight102gBB/Frame InterfacePressFit30Spindle Interface TypeHollowtech IIBB Shell Width68mmDefined ColorBlack
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