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About RK 428 MXZ4 Heavy Duty Chain

RK 428 MXZ4 Heavy Duty Chain

  • A professional series sport chain for pro racing.
  • Anti-stretch chromium pin treatment
  • 10% higher tensile strength
  • Maximum tensile strength of 6,100 lbs.
  • Suitable for 150 cc max offroad.

Warning:  California Proposition 65

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