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      EPT Coated Chains

      A well-maintained bicycle chain should last between 2,000 and 4,000 miles — but most chains begin to corrode before they wear out. KMC’s EPT (Electroless Plated Technology) series was engineered specifically to address both problems at once. The nickel-phosphorus coating applied to every inner and outer plate creates a rust-resistant barrier that extends drivetrain life even in wet commutes, humid climates, and mixed-terrain riding. Independent testing by Zero Friction Cycling and CyclingTips places EPT-treated chains among the most durable options available across 11-speed and 12-speed groupsets.

      What Makes EPT Chains Last Longer

      Standard bicycle chains corrode from the outside in — nickel plating protects the plates, but surface rust can still penetrate the inner links, pins, and rollers where lubrication eventually wears off. EPT’s electroless plating process coats these interior components with a uniform layer of nickel-phosphorus alloy, filling microscopic surface voids that trap moisture and accelerate wear. The result is a chain that resists rust in conditions where a standard chain would begin to degrade within weeks.

      EPT chains are rated for:

      • Commuting in rain and high-humidity environments
      • Touring and bikepacking routes where regular cleaning is difficult
      • E-bikes, where higher torque accelerates conventional chain wear
      17 products
      X12
      from $44.00
      X11
      from $33.00
      X10
      from $27.50
      X8
      from $22.00
      X9
      from $27.50
      WAX XFLAT
      from $45.00
      e12
      from $88.00
      e9
      from $49.50
      WAX X12
      from $49.50
      e10
      from $60.50
      e101
      $55.00
      e11
      from $71.50
      E8
      $41.80
      Z1 Wide EcoProteQ
      $19.80
      WAX X11
      $77.00
      eGlide
      from $68.20
      XGlide
      from $38.50