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RK 520 MXU UW-Ring Chain

Item # 41-111

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Product Details

RK GB 520 MXU U-Ring Chain

MXU is one of the lightest sealed-ring motocross chains available on the market today. Made for the professional motocross racer, MXU series is the next generation of motocross racing chains featuring RK's ultra slim U-Rings or UW-Rings. MXU chains are designed to provide the most consistent power delivery with increased chain life. All components are heat-treated using RK's exclusive HIT (Heat Induction Transfer) Process.


  • The lightest sealed-ring MX chain on the market
  • Designed for the professional motocross racer
  • Designed to deliver consistent power delivery with an extended chain life
  • Ideal for race applications between 125-500cc
  • Includes clip type master link

*NOTE: If your motorcycle came factory-equipped with an O-ring chain, it must be replaced with an O-ring chain.


Orders over $200.00CAD qualify for free expedited shipping within Canada & United States. Shipping will be calculated at checkout for orders from $0CAD to $100CAD. From $100 to $199.99 we charge $10CAD as the a flat rate shipping cost. Click Here to view our complete Free Shipping Terms & Conditions.

For all US orders, items are shipped via Canada Post which transfers the parcels to USPS once in the US. Tracking number will be more accurate with USPS once it has crossed the US border.

For international Orders the shipping fees will be calculated at checkout. Parcels can be tracked via Canada Post or you local post office once it reaches your country

Most items will be shipped within 1-2 business days after the items has been ordered, however if an item requires additional processing time a message will be shown indicating such or we shall contact you.

See our full Shipping Policy for further details.


If your order arrives and it is damaged, we'll take care of it. Don't worry we know carriers aren't always kind wiht the parcels

Item doesn't fit or you aren't happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. Once item is received we will issue a refund to your original payment method.

Please see our full Return Policy for all of the pertinent details.