RK's XRE series chains are the successor to XSO chains, with the XRE chains featuring a 20% longer wearlife. XRE chains include XW-sealing rings which provide two lubrication pools which help protect against high speed abrasion and prevent dirt and debris from penetrating the inner rollers/bushings of the chain. XRE's 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: 8,200 lbs; Max CC Racing: 800cc Street & Off-road; Max Horsepower: 130 HP; Weight per 100 Links: 3.44 lbs; Max Chain Width: 21.7mm; Masterlink Included: Rivet (Clip sold separately).