REGINA Kit catena, pignone e corona ZRE 520

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.