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Wolf Tooth bottom bracket sockets are high-quality CNC machined tools for installation and removal of external cup bottom brackets.

  • Large finger notches so you can start threading the cups by hand

  • 3/8" square socket or 1-inch hex for ratchet/torque wrench

  • Each socket has either a Shimano bearing preload tool or a 16mm hex for use with Race Face Cinch cranksets

  • Steel inserts for magnetic coupling compatibility with the Pack Wrench



  • BBS3916: 16 notch BB socket for 39mm diameter notch pattern, XTR/Dura Ace
  • BBS4116: 16 notch BB socket for 41mm diameter notch pattern, Ultegra BBR60
  • BBS4416: 16 notch BB socket for 44mm diameter notch pattern, Hollowtech II, Campagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels, and others
  • BBS4612: 12 notch BB socket for 46mm diameter notch pattern, Race Face 30mm Spindle, TF47, SRAM DUB, RaceFace Cinch, Zipp Vuma, Rotor BSA30, Hawk Racing BB3086
  • BBS4816: 16 notch BB socket for 48mm diameter notch pattern, FSA 386 MegaEvo, Wheels® PF30


    Related Products

    Pack Wrench
    1" hex inserts
    Travel Tool Wrap
    Pack Tool

      Tech Specs

      Weight:  BBS3916 • 69g  |  BBS4116 •  69g  |  BBS4416 •  71g  |  BBS4612 • 78g  BBS4816 • 80g
        Material: 7075-T6 aluminum

          Made in the USA

          Patent and trademark information