Features: 1.Applicable Model: Carburetor with air filter box is suitable for 2 Stroke Engine Motorized Bicycle Bike 48cc 49cc 50cc 60cc 66cc 80cc. 2.Function: Designed for the proper proportion of air and fuel mixture, ithe carb can provide powerful power and torsion, making your engine run more efficiently. 3.Air Cleaner Box Design: The carburetor is equipped with an air filter box, which can filter out air impurities during operation and improve efficiency. 4.Material: Made of heavy metal alloy, with better surface treatment process, to ensure its reliable, efficient and durable performance, rust prevention and durability. 5.Direct Fit: Ideal replacement for the old and damaged carburetor assembly, allowing your engine to restart. The polished interface provides a perfect seal. Specification: Item Type: Carburetor with Air Filter Box Material: Metal Alloy Bore: Approx. 19mm / 0.75in Fitment: Fit for 2 Stroke Engine Motorized Bicycle Bike 48cc 49cc 50cc 60cc 66cc 80cc