PF30A Thread Together Bottom Bracket for Shimano Hollowtech ll Spindle Cranks.

FEATURES:

• Replaceable Enduro bearings
• Made in the USA

SPECS:

• Spindle Interface Type: Shimano Hollowtech II
• BB Shell Width: 73mm
• Bottom Bracket Shell I.D.: 46mm
• BB/Frame Interface: PF30A
• Weight: 158