BB386 bottom bracket
BB386 is a press-fit standard: the bottom bracket shell is smooth on the inside. You recognise a BB386 frame by a shell 86.5 mm wide with an inner diameter of 46 mm.
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Sizes of a BB386 bottom bracket shell
86.5 mm
Shell width
46 mm
Inner diameter
smooth, no thread
Inside of the shell
Frequently asked questions
CEMA has BB386 bottom brackets for Shimano, SRAM DUB, SRAM GXP, FSA386/Rotor/Raceface 30mm and PRAXIS M30 cranksets.
Measure the bottom bracket shell: on BB386 it is 86.5 mm wide, with an inner diameter of 46 mm.
A BB386 shell is 86.5 mm wide, with an inner diameter of 46 mm. A PF30 shell is 68 or 73 mm wide, with an inner diameter of 46 mm. More about PF30 →
A BB386 shell is 86.5 mm wide, with an inner diameter of 46 mm. A BB86/BB92 shell is 86.5 or 92 mm wide, with an inner diameter of 41 mm. More about BB86/BB92 →
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