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Wolf Tooth bottom bracket sockets are tools for installation and removal of external cup bottom brackets. They are machined here in Minnesota with aircraft grade aluminum.

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

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

  • Most sockets have 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

Bottom Bracket Socket Tool Features



Bottom Bracket measurement guide

  • BBS3916: 16 notch BB socket for 39mm diameter notch pattern, Shimano 9000 series, DURA-ACE, BB92, XTR BB93
  • BBS4116: 16 notch BB socket for 41mm diameter notch pattern, Shimano 105, Ultegra BBR60 and 6800, XT MT-800
  • BBS4416: 16 notch BB socket for 44mm diameter notch pattern, Shimano BB80, BB5700, BB70, BB51, Enduro T47, Wheels T47, many from Hollowtech II, Campagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, and more
  • BBS4612: 12 notch BB socket for 46mm diameter notch pattern, BB386, Race Face 30mm Spindle, TF47, SRAM DUB, RaceFace Cinch, Zipp Vuma, Rotor BSA30, Hawk Racing BB3086, Cane Creek Hellbender, and more. 
  • BBS4816: 16 notch BB socket for 48mm diameter notch pattern, FSA 386 MegaEvo, Wheels PF30, BSA30, BB386, and more
  • BBS4912: 12 notch BB socket for Praxis T47IB
  • BBS5212: 12 notch BB socket for Chris King T47
  • BBS5216: 16 notch BB socket for DUB T47