CeramicSpeed PF4130 Bottom Bracket - BlackSpecifications Enables the use of stiff, lightweight 30mm crank spindles in BB86 press fit frames. Press in cups with wave washer setup; spacers included for proper fit and adjustment. Standard CeramicSpeed Bearings offer 75% less friction than conventional BBs, with only 0. 30. 4 watts of drag per set. Bearings last at least 3 times longer than typical bottom bracket options. Comes with All Round Grease; can be swapped for Race Day (lower drag) or
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