Birzman Bottom Bracket Socket BSA 30 / 386

19% OFF
SKU: BM18-BB-BSA30/386

Size: One Size
Sale price$44.00 Regular price$54.00

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A double-sided B.B. Socket born out of the increasing popularity of 30mm crank spindles.

Made from CNC machined 7075 aluminium it's durable and provides very precise engagement with all the notches of the bottom bracket so won't chew up the bottom bracket.

Compatible with Rotor® BSA 30, SRAM® DUB BSA (axle ∅28.99mm), RaceFace® Cinch, Zipp® Vuma, Hawk Racing® BB3086 or other 12-notch ∅46.5mm external bearing bottom bracket cups. Compatible with FSA® EVO 386 or other 16-notch ∅48.5mm external bearing bottom bracket cups.


  • Functions: 1/2" Dr.
  • Material: Alloy steel.

PLEASE NOTE: Image can vary slightly from actual finalised product.


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