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  • Remove both 15 & 17 tooth cogs from cassette
  • For Shimano cassette, install tab with two dots aligned with wide notch in freehub
  • For SRAM cassette, install tab with one dot aligned with wide notch in freehub
  • Always install side with marker dots facing the outside of the cassette
  • Turn cog fully clockwise before tightening the lock ring
  • Incorrect installation will result in poor shifting