RK 520MXU Gold Dirt Bike Chain U-Ring – 120 Links

$149.00 $125.00

or 4 payments of $31.25 with Afterpay



120 Links

Suitable for Models such as CRF450, FC400, TC450, KXF450, 200XCW, RMZ450, YZF450

RK520MXU is the ultimate gold race chain for 125, 250 and 500cc MX applications. By using advanced metallurgy RK has developed this chain to be the same weight as a lightweight heavy duty race chain but with increased longevity due to the insertion of the ultra thin “U” ring. The ultra ring also allows extremely efficient power transfer with greatly improved heat resistance and anti-abrasion properties making it the ideal choice for the serious MX racer.


  • Recommended Chain Length is a based on OEM gearing and chain size. May require additional links or cutting if stock gearing has been altered.