The JT Z3 Super Heavy Duty X-Ring motorcycle chain is engineered for maximum durability and strength offering a high performance in both road and off road use X-Ring seals are used for a better seal and produce less friction than conventional O-ring chains, solid bushings provide enhanced resistance to distortion from repetitive shock loading Manufactured using leading edge technology and only the highest grade of special steel alloys, JT advanced power transfer chains meet or exceed the requirements of all modern motorcycles and ATVs JT Z3 Super Heavy Duty Chains are constructed with quad riveted pins for an extra strong rivet that resists powerful lateral forces on the outer plate Roller Dia 10.32 mm; Pin Len 23.70 mm; Plate Thickness Inner 2.4 mm; Outer 2.6 mm; Weight per 100 links 4.63 lbs.; Avg. Tensile Strength 10341 lb.-f; No. of Pin Rivet Press 4; Master Link Rivet