China factory Motorcycle Kit Transmissao Sprocket & Chain Fan/Titan 150 43t/16t/ 428h/118L Product Description Product Description1) Material: C45 Steel, Cast Iron 40Cr, 42CrMo, stainless steel2) Standard: DIN, ANSI, BS, JIS3) Processing: Forging-Machining-Hobbing4) Sprocket & Plat wheel in European Standard5) REAR SPROCKET :...