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, 520 ZRE Drive Chain, New, high-performance ZR chains with new patented Z44 seal Z-ring sections, Z-ring flexes when assembled, creating a spring effect that guarantees seal will not diminish over time, Z-ring section also provides enhanced chain flexibility, Features high alloy steel plates and pins, solid bushings and rollers and shot-peened plates, pins and rollers, Pre-stretched to enhance performance, Clip type and rivet type links included, Gold color