1. O-ring chain has been upgraded with a host of improvements to offer a stronger, longer lasting chain
2. Features 10% increase in chain wear life
3. 15% greater shock-pin resistance and roller-fatigue strength
4. 7% greater overall fatigue strength
5. Average tensile strength is now 7,644 lbs.
6. O-rings which retain a special vacuum-injected grease around the pin and bushing area
7. High alloy steel pins, solid bushings and rollers, and shot peening of plates and rollers for increased fatigue resistance