Birzman Bottom Bracket Socket For Shimano Hollowtech II Bottles BR-M9000 has two ceramic pistons

BR-M9000 has two ceramic pistons

Being lightweight they're easy to stash in a jersey pocket if you do find yourself a bit too warm

• Maintains cognitive function

Torx® wrench - T30

Ensures effective puncture protection for around 3 months

Birzman Bottom Bracket Socket For Shimano Hollowtech II Bottles BR-M9000 has two ceramic pistonsHigh quality 1 2" socket head by Birzman for the installation and removal of Shimano Hollowtech II and other compatible BSA bottom bracket cups. Specifications: For Shimano Hollowtech II, FSA Megaexo, SRAM Truvativ GXP and similar BSA bottom bracket cups with 16 notches With 1 2" drive Fits Shimano BB Tool Adaptors TL FC24 and TL FC25 Material: CNC machined hardened steel Size: 55 x 45 mm Sizing Information Size Std. Country of Origin Taiwan