RK Dirt Bike Chains - Quality OEM Replacement Chains

GB420MXZ, GB428MZX, NON GOLD 420 and 428MXZ: These RK Heavy duty chains are constructed with advanced alloy materials.  They take the honors of strongest chains in their class. Rated for use up to 125cc motorcycles and gold or metal finishes are available. 

420SO and 428SO: Built with hi-carbon alloy steel, the 420SO and 428SO are made for strength and durability. Nitrile Butadiene O-rings seal in lubrication while delivering smooth power without the O-ring drag or loss of power to the rear wheel that other chains are infamous for.

GB520MXU Sealed Motocross: Designed for professional motocross racers the MXU is the lightest sealed-ring MX chain on the market.  This RK Dirt Bike Chain features a maximum tensile strength that is rated at 9,000 foot pounds and it only weighs 3 lbs for each one hundred chain links. This is an MX race application for 125 to 500cc use.

GB520MXZ4 and NON GOLD 520MXZ: Serious Motocross racers inspired the design of the strongest and lightest professional grade chain on the market. Featuring oversized special alloy pins for added strength. The GB520MXZ4 and NON GOLD 520MXZ have a maximum tensile strength rating of 9000 foot pounds and weigh an amazing 2.89 lbs. per one hundred links. This Heavy duty chains rated up to 500cc Applications
 
GB520EXW and Non-Gold 520EXW XW-Ring: Premium quality 520 XW-Ring chain for dirt bike and ATV use. This RK chain has a maximum tensile strength rated at 8500 foot pounds. Rated up to 750cc Applications

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