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About EK 520 SM 3D Premium Chain

EK 520 SM 3D Premium Chain

  • 3D parts are precisely manufactured, leading to a greater improvement of transmission efficiency, better acceleration and efficient engine work.
  • Features an original special plate with a lightening hole.
  • EK creates a hole on both ends of a pin to lighten the chain without weakening the plate according to computer analysis.
  • The edge-cut inner plate reduces friction and realizes smooth engagement with sprocket.
  • This plate enables the chain to be light, removes mud from the hole and dissipates heat effectively.
  • Chrome plating
  • Reduced friction
  • Chromium carbide pin with lighten hole in end
  • Inner plate with lighten hole
  • Improvement of transmission efficiency
  • Dimpled outer plate
  • Edge-cut inner plate
  • 520SM for 250-650cc
  • SX2 O-ring
  • Rivet link.
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