Shimano Dura-Ace R9100 Hollowtech II English Bottom Bracket Cheap
$19.56Specifications: BB Shell Width (mm): 68 BB Frame Interface: English Bottom Bracket Shell I.D.: 1.37 Defined Color: Black Spindle Interface Type: Shimano Hollowtech II Weight: 65 UPC: 689228858619 MPN: IBBR9100B