Brand new aftermarket performance air filter, easy install, durable, universal fits for most motorcycle air filter with 38mm / 39mm / 40mm engine inlet. For most Off-road motorcycle, atv, quad, scooter, go kart, moped, pit bike, dirt bike, racing bike, super bike and other bike. For small to medium mid-sized engines 50cc – 90cc, 110cc, 125cc, 140cc & 200cc 2-strokes or 4-strokes engines. Fits most carburetors (PZ22, PZ25, PZ26, PZ27 etc) requiring a 38mm (1.5in) inside diameter opening. Fit most Chinese import Pit / Dirt bikes, almost all of the bike brands from China, such as TaoTao, Buyang, Coolsport, Jonway, Znen, NST, BMX, Kazuma, Sunl, Roketa, AIM-EX etc. It also fits Honda Kawasaki Yamaha Suzuki and other brand bikes. Has a style gauze filter covered with a plastic cover to stop intake of water into the carburetor. The air filter prevents abrasive particulate matter from entering the engine’s cylinders to ultimately increase horsepower, torque and improve the gas mile