OSBB (Specialized) for Ø24mm

Specialized's OSBB is a PressFit standard that has been used on some of their models (Tarmac, Venge)

Hawk Racing OSBB Bottom Bracket is compatible with 24mm crankset spindles such as Shimano Hollowtech II (Dura Ace, Ultegra, 105). It can also  be used with a SRAM GXP crankset with the addition of our adapter.

Check your bottom bracket standard