Mountain bike helmet with adjustable visor-Birzman Shimano BB Socket (Hollowtech II)

Title Default Title
Qty:
  • 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 inch drive compatible
    • TECH SPECS
    description Shimano BB Socket (Hollowtech II)
    compatibility Shimano Hollowtech II or other 16-notch