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. Features: Tensile Strength Increase - A slight jump from the ERV3, the ERV7 boasts a 3% higher tensile strength due to inner side plates and thicker pins. Longer Chain Life - Due to increased X-Ring durability, the ERV7 sees a 13% wear resistance increase from the previous ERV3. Reduced Friction - Because of the X-Ring improvements, the ERV7 will have less friction than the ERV3. 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
