... within 15 days Positive customer feedback Brief Description of Sprocket Components Motorcycle Sprocket ComponentsChain415,415H,420,428 ... East Asia, South Amercia, American, Europe, etcProcessing Technic of Sprocket Components1) Heat Treatment: High frequency hardening on the ... Golden,silver white,yellow,blue,white,five color etcAdvantages of Sprocket Components1) The raw material is carefully selected ...