This Wolf Tooth Bottom Bracket Tool is precision CNC machined for installation and removal of external cup bottom brackets. Handmade in the USA at Wolf Tooth's HQ in Minneapolis.

Compatibility

• 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