Moto Master 620073251 - 620073251 - Moto Master Fusion Dual Rear Sprocket - Gas Gas EC250F & EC35

Features: 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.