An eye-catching streamline silhouette that is a Birzman signature design, this Specialist B.B. Wrench is compatible with Shimano® Cartridge or other similar 20-notch Ø31.6mm bottom brackets.

Made from extra-hard wearing materials, the Specialist Wrenches are a highly functional and durable combo to have in the workshop.

Modular extension bar is available (BM11-ST-MHE-K) to increase the leverage of the wrench.


CrMo / TPR

Other Products In The Range

*Shimano® is a registered trademark of Shimano® Inc.

  • Check with bottom bracket manufacturer for specific torque value settings.
  • All tools should be stored in a dry environment.