For Bontrager Boost Rapid Drive 54 and Rapid Drive 108 hubs
The Bontrager Rapid Drive XD-type freehub body allows you to mount an 11- or 12-speed Sram cassette on wheels with a Bontrager Rapid Drive 54 or Rapid Drive 108 hub.
For a 54-tooth engagement, Bontrager recommends using 3 pawls, compared to 6 for a 108-tooth engagement.
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Based on 2 reviews
Original part RAS (Translated review)
Super, assembly very well done, very nice sound top (Translated review)
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