Did 520 Standard - Drive Chain - 120 Links M520X120Rb

520ERVT breaks down the concept of the original motocross chain (non o-ring) and adds the benefits of an x-ringX-Ring helps keep your chain sealed with lubrication, limits dirt and mud from getting...

The 520 ERV7 chain boasts a 3% higher tensile strength due to stronger inner side plates and thicker pinsDue to increased X-Ring durability, the ERV7 sees a 13% wear resistance increase

Low-cost, high-quality solid roller chainQuad-staked pin rivetingSpecial alloy steel constructionPre-stretched at factoryFor machines originally equipped with non-O-ring chainComes with clip-type...

Low-cost, high-quality solid roller chainQuad-staked pin rivetingSpecial alloy steel constructionPre-stretched at factoryFor machines originally equipped with non-O-ring chainComes with clip-type...