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About Black Diamond Xtreme Rock Rollers

Black Diamond Xtreme Rock Rollers

  • Improves clutch performance and shift characteristics
  • Made from engineering grade plastics designed to withstand continuous exposure to elevated temperatures and severe stress conditions
  • Low coefficient of friction and ROCK hard compound make ROCK Performance Rollers the most advanced engineered rollers to date
  • Fits all Diamond drive secondary clutches.

Warning:  California Proposition 65

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