Rxo series qx-ring ek chains, Chains and sprockets, ATV, quad bike, farm bike, parts, accessories | ATV Guide

RXO Series QX-Ring EK Chains

ZXT Equipped Pro Racing Chains

When second place isn't an option, choose an RXO series chain.

The RXO's race proven design is a product of countless hours of testing and actual MotoGP Road Racing.

The RXOSM and RXOGP chains feature an incredible narrow 18.90mm chain width (the narrowest of any 520 chains) without sacrificing strength or dependability.

All RXO series chains come standard with ZST* except the 520RXO/SM where it's available as an option.

*Zero Stretch Technology which eliminates measurable chain stretch during the first 600 miles of use. ZST puts an end to the hassle of constant chain adjustments after the initial break-in period when most chain stretch occurs. ZST is standard on all ZZZ, RXO and RXO/GP series chains.

NOTE: RXO chains come standard with semi-press fit SKJ clip-type connecting links, which are easy to install and very similar to a standard SPJ link. The SKJ's re-designed link plate requires additional pressure to push onto the connecting pins but offers increased dependability and a tighter fit. Can be easily installed with a standard pair of pliers. MLJ rivet-type connecting links are an optional connecting link.

NOTE: RXO/SM chains come standard with the MLJ rivet-type connecting link, which is EK chain's most dependable connecting link, and is more commonly used on street machines. Does require a special riveting tool to install. SKJ clips are an optional connecting link.