Fit a Shimano Hollowtech II (24 mm) crank in a BB386EVO press fit shell
Whether a Shimano Hollowtech II (24 mm) crank fits a BB386EVO press fit shell, and the bottom bracket that makes it work.
The crank and the shell
| Crank spindle | Shimano Hollowtech II (24 mm) (24 mm constant diameter) |
|---|---|
| Frame shell | BB386EVO press fit (46 mm smooth press-fit bore, 86.5 mm wide) |
| Verdict | needs a reducer |
| Bottom bracket to buy | BB386EVO to 24 mm Shimano reducer bottom bracket |
SHELL BB386EVO press fit (46 mm smooth press-fit bore, 86.5 mm wide)
SPINDLE Shimano Hollowtech II (24 mm) (24 mm constant diameter)
BB BB386EVO to 24 mm Shimano reducer bottom bracket
SPINDLE Shimano Hollowtech II (24 mm) (24 mm constant diameter)
BB BB386EVO to 24 mm Shimano reducer bottom bracket
A 24 mm Shimano crank runs in a BB386EVO 46 mm bore using a reducer BB that presses into the wide 86.5 mm shell and steps down to 24 mm.
The shell is 86.5 mm wide, so the reducer is longer than a PF30 one. Match the reducer to BB386EVO, not plain PF30.
The bottom bracket to buy
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Related fits
Shimano Hollowtech II (24 mm)24 mm spindleBB386EVO press fit46 mm bore, 86.5 mmShimano Hollowtech II (24 mm) in a BSA / English threaded shelldrops inShimano Hollowtech II (24 mm) in a Italian threaded shelldrops inShimano Hollowtech II (24 mm) in a T47 external (T47-68 / T47-73) shelldrops inShimano Hollowtech II (24 mm) in a PF30 press fit shellneeds a reducer
SOURCES: Park Tool, Bottom Bracket Standards and Terminology · Wheels Manufacturing, Crankset Spindle Standards & BB Compatibility · Wheels Manufacturing, BB Overall Width Reference Chart