CYCLUS TOOLS workshop tool for bottom bracket with guide and handles. Compatible with SHIMANO FC-M952, FC-M951, FC-M950, FC-M750, FC-M739, FC-M571, FC-M569.

For installing and removing the lock nut, for example of:

• Bosch compatible BDU 4


• Bosch compatible Locknut Spider Active (2017)


• Brose MTB


• Continental 48V Prime


• Shimano FC-M569, FC-M571, FC-M739, FC-M750, FC-M950, FC-M951, FC-M952


• Truvativ Gigapipe


• Mivice x700

Insert the guide into the bottom bracket shell and position the installation tool over or inside the teeth of the inner bearing cup. You can now install or remove the bottom bracket without the tool slipping off the bearing cup. When installing the bearing cups, observe the tightening torque specified by the manufacturer.