D.I.D's PRO-Street X-Ring VX Series Chains are high quality X-Ring chains with superior strength to withstand the horsepower of today's Dual Sports and Trials Bikes. The VX Series uses our patented low friction X-Ring for maximum performance. Features: Greater rigidity (7% higher than previous VM) Higher rigidty creates smoother handling, reduced power loss and quicker response D.I.D X-Ring has half the friction compared to O-Ring chain Superior longer life than previous VM series Replaces the Professional O-Ring V Series and the Premium X-Ring VM Series Average tensile strength of 8210 lbs. MAX. 800 C.C. Available in Gold and Black or Black (unplated steel) Specifications: Pin Length: 18.7 mm Roller Diameter: 10.22 mm Plate Inner: 2 mm Thickness Outer: 2 mm Weight (100 Links): 1.52 kg Tensile Strength: 8210 lbs. Seal Type: X Wear Resistance (Index=Std. Chain=100): 3500 Rivet Connecting Link: Option Clip Connecting Link: Included (FJ) Engine C.C. raing: 500 C.C. (Trial), 750 C.C. (ATV, Dual Purpose, Rally & Enduro, Street & Supersport)