Due to theCOVID 19, We are completelysold out and out of stockofall ATV's, Go Karts, and Dirt bikes from all of our manufacturers. We are expecting some arrivals on some items next couple of weeks but until then we have nothing to sell. We are looking to back in full stock come Spring 2021. 

We are very sorry for any inconvenience and hope to be back serving you soon, this has affected the entire industry! 



420 Drive Chain | RK420M | Heavy Duty Racing chain

420 Drive Chain | RK420M | Heavy Duty Racing chain


Product Code: RK420M

Product Information


 Premium Replacement RK Brand 420M Chain (Choose your Length)

  • Made in Japan
  • A= 12mm / .54"
  • B= 7.6mm / .30"
  • C= 6.7mm / .26"



  • (1) Custom Length Drive Chain
  • (1) Connecting Link

Choose your size:

  • Use the Provided Diagram to help determine the number of links you will need.
  • Total number of links will include a connecting link as 1 link.
  • Choose you total number of links from the drop down menu below.

Product Features:

  • All RK chains are pre-stressed and pre-stretched to ensure equal load distribution and minimal maintenance.
  • Heat-treated medium carbon alloy steel construction.
  • All components heat-treated and shot-peened for maximum strength.
  • Two-point pin riveting and solid rollers.
  • For motorcycles up to 400cc that did not come with an O-ring or heavy-duty chain as standard equipment.
  • Wear Life Index std. as 100: 100
  • Tensile strength: 4200 lbs .
  • Disp. max cc's: Street 125cc  Dirt 125cc
  • Includes CLIP TYPE master link.

Stock Known Sizes:

  • TaoTao 125D = 80 Links
  • TaoTao 125H = 86 Links

Note: Some factory installed chains are very tight even with the chain adjuster all the way in. In these circumstances we recommend adding two links to the Link size (80 = 82 Links) Chain sizeing must be done in even numbers.

Please look carefully at the pictures provided. If you have any questions regarding fitment for a specific model please call 732-991-2194 for assistance.

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