Absolute Black Cassette Cog for Shimano, 40T - Black

Absolute Black

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Great solution for riders who require one lower gear on steep climbs

  • Only fits Shimano 10sp 11-36t cassettes (XTR-M980, XT-M771 and SLX-HG81)
  • Requires removal of the 17t cog and spacer from existing cassette
  • By using the optional Absolute Black lockring the 11t cog can be removed keeping the 17t cog. Lockring sold separately, use TAH2AI4091
  • Use of a long cage derailleur is recommended, generally a medium cage will work, do not attempt to use a short cage while running the 40t cog
  • May require a longer 10sp chain
  • Designed in UK, manufactured in Poland


  • Teeth: 40t
  • Color: Black
  • Version: Shimano
  • Weight: 77g