Rockman Forge, CNC Crank arms.

TECHNICAL SPECIFICATIONS

  • Forge from 7075 aluminium and Finish off by CNC machining.
  • Made for ISIS BB.
  • Available lengths 160mm,165mm,170mm & 175mm.
  • Available in black or silver anodised
  • Weight 160mm(425g) , 165mm(430g) , 170mm(440g) , 175mm (445g)

GEOMETRY

  • Offset 33mm