Special hardened and nickel coated steel outer ring, Will outlast an aluminum sprocket up to 3 times, 50% less weight compared to a normal steel sprocket, Aircraft-grade 7075-T6 aluminum carrier, Precise manufactured outer ring and carrier interlock permanently using a specialized heat-shrink procedure, Carrier is color anodized coated for extra durability, CAD designed, CNC machined and laser cut using state of the art technology
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