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Onyx 5 Bolt Chainring: 39t, Black

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A premium level, aluminum CNC-machined chainrings for 5-bolt pattern cranks.

  • CNC machined from 7075 aluminum
  • Features a keyed backing for use with Onyx chainring bolts (sold seperately), eliminating the need for a nut wrench
  • All rings accept standard chainring bolts