Has increased rigidity to reduce flex, which gives you a more responsive and smooth driving experience.Patented X-Ring seal technology.Widely used chain on both on and off-road bikes. Chain Size428Color/FinishSteelMaximum Engine Displacement (Offroad)350 ccNumber of Links140Product NameDrive ChainSeal TypeX-RingTensile Strength33 kN (7420 lb)TypeChainUnitsEachVendor part number4525516355353