Size: 35MM 42MM 48MM. 1PC Carburetor Air Filter Intake Cleaner 54mm Motorcycle Dirt Bike PWK 32mm 34mm. 1PC Air Filter. Universal fit for most motorcycle air filter with 35/42/48mm engine inlet. 30mm Upgrade Carburetor Intake Manifold Adapter 200cc 250cc ATV Quad Dirt Bike.