GY6-50 cylinder gasket features: 1, Good quality,with red thread 2, Fuel saving products 3, Prevent oil and air leaking. GY6-50 cylinder gasket This GY6-50 cylinder gasket is made of high quality material which is meet the Japanese JSR3453-1995 standard, and adopt accurated mould which guarant the product size.The product has the advantage of flexibility and bearing oil and pressure, also bear ...