This Bottom Bracket Tool from Wolf Tooth Components is CNC machined in the USA from 7075 billet aluminum for an exact fit that's safe to use on aluminum BB cups. The finger notches on the outside allow for hand threading to get cups started without the danger of cross-threading the BB shell, and a 3/8" socket lets a ratchet or torque wrench finish the job.
Compatible with the following external cup bottom brackets (16 notch, 44 mm): most Shimano, SRAM/Truvativ GXP, Chris King, FSA EXO, Race Face, Hope, Campy, Surly, etc. Does NOT fit the following: XTR BB93, Dura Ace BB9000, Ultegra 6800 11-speed.
Note: tool is marked with 40 N-m / 30 lb-ft max torque -- this is not the max capacity of the tool, it is just a recommended torque for most bottom brackets. The tool can be used to whatever torque is recommended for your bottom bracket cups.
Claimed weight is 74 g.
Q & A with home mechanic Tommy Tuite.