Shimano Dura Ace BB-R9100 Hollowtech II BSA Type Bottom Bracket
Brand: SHIMANO

Shimano Dura-Ace BB92, BB9000 Hollowtech II Bottom BracketsItem SpecificationsDefined ColorBlackBottom Bracket Shell I.D.1.37Spindle Interface TypeShimano Hollowtech IIWeight65BB Shell Width (mm)68BB/Frame InterfaceEnglish

Material: [cups] aluminum
Shell Width: [English] 68 mm, [Italian] 70 mm
Threading: English, Italian
Manufacturer Warranty: 3 years