Browsing products from Birzman

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Chain Tools
Crank and Bottom Bracket Tools
Birzman SRAM DUB T47 BB Socket
coming soon Margin Booster
1 choice
Birzman Shimano BB Socket (Hollowtech II)
Margin Booster
  • Compatible with Shimano Hollowtech II or other 16-notch 44mm external bearing bottom bracket cups
  • Also compatible with 16 notch rotor disc lockrings (incl. E-Thru axle hubs)
  • 1/2" drive compatible
 
item # description compatibility in stock?
  BM9260 Shimano BB Socket (Hollowtech II) Shimano Hollowtech II or other 16-notch YES