Features: * 100% quality assurance tested, more responsive, less expensive, easier to install. * 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: 1. Find what your air filter locates (on the side), and remove the cover. 2. Switch the fuel inlet to 'off', release the fuel gauge, and the 3 other cables. 3. Remove and replace it with a air filter, the clamp directly to the carburetor throat 4. Driving the motorcycle to check if it works normally. Specification: Name: Air Filter Material quality: rubber + non-woven fabric + metal Applicable models: universal Colour: Black Diameter: 51mm / 55mm / 60mm Size: as show Packing Included: 1 * Air Filter 1 *Clamp Note: 1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.