BSD Substance XL Cranks

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Substance XL cranks, a single bolt design 2.5 piece crank with hefty 24mm XL spindle and an all new flush boss design eliminating sharp edges around the ankles.


  • Heat treated 4130 XL 24mm diameter CNC machined 48 spline hollow spindle.
  • Heat treated 4130 chromoly arms with rectangular cross section for increased stiffness and grindability.
  • RHD / LHD compatible.


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