NC-17 ISIS MTB Pro Bottom Bracket

NC-17 ISIS cranks are CNC made, heat treated and equipped with either an M15 or M12 fixing bolt- all of which makes for a rock solid crank/BB interface. This sturdiness is further enhanced by our precision manufactured 7075 aluminium bearing shells meaning that even in the hardest race our BB’s will perform flawlessly.

So that micro movements of the BB-set can’t end up as unpleasant cracking noises we have added an additional hard rubber ring that absorbs peak loads at the microscopic level meaning that your cranks should run silently- without exception! The pro BB-set uses two sealed cartridge bearings that are positioned as closely to the crank as is possible to give optimal force distribution. The bolts for mounting the axle are included in delivery.

Technical facts:

  • With 2 sealed cartridge bearings
  • Compatible with 68mm and 73mm BB-Shells
  • Incl. M15 crank bolt and 2.5mm spacer
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 order number:

ISIS MTB Pro Bottom Bracket;
113mm; M15		5470
ISIS MTB Pro Bottom Bracket;
118mm; M15		5471

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