Features: Provide high air-flow with excellent filtration. Provide increased horsepower and acceleration. Catch dust better than an oil soaked filter and to be run dry. Washable and reusable. Installation Instructions: Find what your air filter locates (on the side), and remove the cover. Switch the fuel inlet to 'off', release the fuel gauge, and the 3 other cables. Remove and replace it with a air filter, the clamp directly to the carburetor throat Driving the motorcycle to check if it works normally. Specification: Name: Air Filter Material : rubber + non-woven fabric + metal Applicable models: universal Colour: Black Diameter: 51mm / 2inch Size: as show Packing Included: 4 * Air Filter 4 * Clamp.