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Sram X4 Rear Derailleur 7-8 Speed

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  • 1:1 actuation ratio
  • di.r.t: direct route technology
  • lightweight materials
  • 6061 alloy b-knuckle
  • steel/composite cage with replaceable pulleys
  • 8-speed
  • weight: 270g
Product Code: R6314015

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