D.I.D 520ERV7 Racing Chain

The 520ERV7 is the top-of-the-line racing chain for all types of motorcycle racing, on and off road. Incredible design and utilization of our patented X-Ring seal technology makes the ERV7 a top performing racing chain available. Utilized by factory teams worldwide, the ERV7 is chosen for Superbike racing with teams such as the Fresh N Lean Progressive Yamaha Racing team and the Warhorse Ducati team. Also chosen by the Honda HRC Rally team, team Honda HRC for SX/MX, and SLR Honda competing in the Score International races, WORCS, and NGPC offroad series. Max CC: 1,000cc Tensile Strength: 8,800 lbs Weight (100L): 3.41 lbs Seal: X-Ring Chain Life Index: 3500 Pin Length:  0.752" Pin Diameter: 0.217" Inner Plate Thickness: 2 Outer Plate Thickness: 2