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Kcnc PF30 Adapter Bottom Bracket

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Product Description

The PF30 bottom bracket by KCNC is a fantasticly smooth aftermarket option for those looking to upgrade their current bearing set. Designed to integrate with 24 or 25 mm crank spindles, such as Shimano Hollowtech II or options from FSA.


The KCNC PF30 bottom bracket is compatible with both 68 / 73 mm road or mountain shell types while using a 24 or 25 mm crank spindle. To switch from 73 to 68 mm, simple remove the provided 5 mm spacer that sits between the male and female cups.


To properly tighten these threaded bearing cups, two Hollowtech II compatible tools will be required. KCNC recommends tightening the cups to 35 ft-lbs of torque. Consult the instructions provided with each BB to insure that you have installed the correct spacers according to your crank type and bottom bracket shell width.

Product Specifications

Weight141 grams
Bearing Size6805 (2)
Mountain73/68 mm
Road68 mm
Spindle Diameter24 / 25 mm

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