Premium manufacturer front sprocket, rear sprocket and a precut Regina chain make a convenient kit for the dealer or consumer, Sprockets are made of high-quality steel and have OEM gearing, 525 ZRE Drive Chain, Designed and developed to withstand the severe stresses caused by Off-Road riding, ZRE chains are intended for long distance Adventure use., The special Z-Ring allows extended lubrication intervals while delivering incredible durability levels., ZRE chains are assembled with high carbon alloy steel, solid bushings and rollers, shot-peened plates, pins and rollers to reach high fatigue limits., ZRE is the chain you can trust, the best choice for Adventure riding.