Wheels BB30/PF30 Bottom Bracket Adapters. Features: Shims press fit directly into BB30 or PF30 bottom brackets WZ-9700 and 9800 for 24mm non-tapered spindle cranks, such as Shimano Hollowtech-II WZ-9702 and 9802 for 24 to 22mm tapered GXP spindle cranks, such as SRAM and Truvativ Easy to install and machined for exact fit based on industry standard BB30 or Pressfit 30 bottom bracket shells Specs: Model: BB30 to 24mm Description: bottom bracket adapter Remarks: Includes socket head screws (25) M4x10, (25) M4x12, (25) M4x16, (15) M4x20, (25) M5x12, (25) M5x16, (25) M5x20, (15) M5x25, socket head cap: (25) M6X12, (25) M6X16, (25) M6X20, (25) M6X25