Ek 530ZZZ 150 Link Chrome Extreme Sport Bike Chain Ultra Strong: The ZZZ chain features a revolutionary new side plate profile that more effectively distributes the load onto the side plate. This innovative design gives the 530ZZZ chain an incredible 11,100lb. tensile strength without increasing weight (4.85 lbs. per 100 links) Light weight: Lightening holes in the side plates reduce the chain&rsquo;s overall extend the service life by dissipating heat and helping reduce dirt and mud build-up Zero Stretch: EK&rsquo;s proprietary Zero Stretch Technology (ZST) virtually eliminates initial chain. No chain adjustment is needed in the first 1000km of use EKs strongest chains developed specifically for Extreme Sport Bikes. The ZZZ chain was developed for modified Extreme Sport Bikes running extended swingarms The Pinnacle of Chain Technology