39mm Air Filter for 125cc 150 cc 200CC ATVs Dirt Bikes Quad 4 Wheeler Pit Bike 125 cc Go Karts Dune Buggy Sandrail Taotao SunL Coolster Kandi Tank SSR Roketa Baja 39mm Air Filter. Top Quality Guaranteed. Air Filter for 125cc-200cc ATV & Dirt Bikes; It fits 125-200CC ATVs & Dirt Bikes, 125cc Go Karts. Such as Honda CRF50/ XR 50/CRF70 Pit bikes, Oil-cool/SSR/Coolster Dirt Bikes, please check pictures and specifications for compatibility Flange diameter:39mm; Compatible with 22mm,26mm,27mm caliber of Pull Carburetor with Hand/Cable Choke Higher air flow than normal filter for maximum power; Race tested for performance and reliability; Race filters increase air flow by up to 25% over standard filters