RKs XRE series chains are the successor to XSO chains with the XRE chains featuring a 20 longer wearlife XRE chains include XWsealing rings which provide two lubrication pools which help protect against high speed abrasion and prevent dirt and debris from penetrating the inner rollersbushings of the chain XREs features create a perfect balance between high tensile strength lightweight while maximizing wearlife Ideal for OE chain replacement of middle to large displacement motorcycles XRE series chains are available in 520 525 530 pitch Tensile Strength 9400 lbs Max CC Racing 1000cc Street Offroad Max Horsepower 200 HP Weight per 100 Links 397 lbs Max Chain Width 225mm Masterlink Included Rivet