FSA PF30A Shimano Bottom Bracket 73 × 46 mm – for 24 mm axle
The FSA PF30A Shimano Bottom Bracket 73 x 46mm for 24mm Axle is a press-fit (PF30A) bottom bracket specifically designed for Cannondale PF30A asymmetric frames.
Key Features
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Standard: PF30A (asymmetric)
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Frame shell size: 73 × 46 mm
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73 mm = bottom bracket shell width
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46 mm = shell inner diameter
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Axle compatibility: 24 mm
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Compatible with:
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24 mm Shimano cranksets (e.g. Hollowtech II)
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24 mm FSA cranksets with pinch-bolt clamping systems
What is it for?
This bottom bracket allows you to install a Shimano 24 mm spindle crankset in a Cannondale PF30A frame. The PF30A standard is different from standard PF30, using an asymmetric shell design, so not all PF30 bottom brackets will fit.
Important difference: PF30 vs PF30A
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PF30 → standard symmetrical design
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PF30A → Cannondale-specific asymmetric standard, commonly found on some road and gravel frames
Because of this, it is important to confirm that your frame uses the PF30A 73 × 46 mm standard before purchasing.
Compatibility Summary
Compatible with:
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Cannondale PF30A 73 × 46 mm frames
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Shimano 24 mm spindle cranksets
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FSA 24 mm spindle cranksets with pinch bolts
Not compatible with:
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30 mm spindles (e.g. BB30/PF30 cranksets)
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Threaded BSA frames
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All standard PF30 frames (compatibility is not universal)
