Birzman B.B. Socket Bottom Bracket Tool (Hollowtech II)

Birzman B.B. Socket Bottom Bracket Tool Description:

The Birzman B.B. Socket Bottom Bracket Tool works with Shimano Hollowtech II external bottom bracket cups featuring 16-nothces and other similar external bottom bracket assemblies with a Ø44mm cup diameter.

Features:

• Bottom Bracket cup tool intended for use with 1/2″ socket drive wrenches
• Addresses external bottom bracket cups or external threaded lockrings on Centerlock rotors
• Also fits Shimano BB Tool Adaptors TL-FC24 & TL-FC25

Specifications:

• Material: Hardened Steel

This product was added to our catalog on June 16, 2025