External Cup B.B.

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External Cup B.B.
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External Cup B.B.

BT4730-86-OS

BT4730-86-OS

MATERIAL Alloy Cups And Body
THREAD: M47xP1.0 L/R
B.B SHELL w86/92mm
CRANK SPEC For ∅30mm Crankset
BEARING Sealed Bearing
OPTIONAL Ceramic Bearing
AVAILABLE FOR TOOL NOTCH Notch 16T O.D. 48.5mm
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