35mm Air Filter for 50cc 70cc 110cc ATVs Dirt Bikes Go Karts Quad 4 Wheeler Pit Bike 35mm Air Filter. Top Quality Guaranteed. New 35mm Air Filter; Fits 50-110cc ATVs, Dirt Bikes, Go Karts, such as Taotao and Coolster ATV parts, SSR and Coolster dirt bikes, Honda CRF50/ XR 50/CRF70 Pit bikes and their copies Inside diameter:35mm; 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