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Problem Solvers Center-lock Lockring for 12,15,20 mm Thru-Axle

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Sold individually or as part of Problem Solvers’ 6-bolt adapter assembly, this lock ring is meant for use with Shimano Center Lock compatible hubs.

  • External splines; compatible with external bottom bracket tools
  • For use with 12–20mm thru-axles
  • Aluminum construction