BBB ROLLER BOYS BLACK


  • 10T , 11T.
  • Composite material provided by EMS Swiss, with 40% glass-fiber mixture.
  • Special teeth pattern for quick shifting performance.
  • Complete set of bushings for different shifting systems included.
  • Compatible with Shimano 9, 10 and 11-speed / Mega Range, SRAM X0/X9/X7, Apex, Rival, Force and Red (> 2011) and Campagnolo 11-speed.

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