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External Bearing Bottom Bracket Socket

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Why We Like The External Bearing Bottom Bracket Socket

The Pedro's External BB Socket fits outboard threaded bottom brackets with a 44mm outer diameter and a 16-notch interface. This includes most options from Shimano, Campangolo, FSA, Chris King, and more. It also works with Centerlock rotor lockrings.


  • Pedro's socket for externally threaded BB's
  • Fits 16-notch, 44mm O.D. bottom bracket interfaces
  • Professionally machined for a precise fit
  • Utilizes a 3/8in driver, also works with Pedro's Pro Socket Handle
  • Please see technical specs for compatibility details
  • Item #PED0077
tool steel
[16-notch 44mm external bearing bottom brackets] Shimano Hollowtech II 24mm (except Dura Ace, Ultegra BBR60, XT MT800, and XTR), Campagnolo Power and Ultra Torque, Campagnolo Ekar BSA & Italian threaded, Chris King Threadfit 24, Hope outboard, FSA Mega EXO, Kogel BSA GXP, SRAM GXP, Ceramic Speed 24mm outboard
Other Tools
Centerlock rotor lockrings, Shimano TL-FC24 and TL-FC25 adaptors
Manufacturer Warranty
2 years
bicycle maintenance