If you have recent edition Crank Brothers Cobalt or Iodine wheels and want to make the transition to SRAM's revolutionary 1x11 system, then the Crank Brothers XD Driver Body is what you need to convert the rear hub to the 11-speed XD driver body standard. Simply swap out the existing freehub on your Cobalt or Iodine wheels with the XD Driver and you'll be all set to install the 11-speed 10-42 cassette.
Item No. » CB-XDB
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