Shimano XTR BB91-42A Press-Fit Bottom Bracket (Black) (BB91/Specialized) (84.5mm) (24mm Spindle)

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Shimano XTR BB91-42A Press-Fit Bottom Bracket for Specialized frames.


  • Includes 3 x 2.5mm spacers
  • Specialized brand frame specific
  • New seal construction for smoother rotation

Frame Interface: BB91
Spindle Interface: 24mm (Shimano Hollowtech II, FSA MegaExo, Surly OD, FSA MegaExo Light, RaceFace EXI)
Bottom Bracket Shell ID: PF41 
Shell Width: 84.5mm
Color: Black
Weight: 54.0g (Manufacturer Claimed)

This product was added to our catalog on May 31, 2019