The mouth diameter:39mm/1.53"
Cleaner Air Filter for 125cc 150cc 200cc ATV Quad Go Kart Cart Dirt Bike for most carburetors(PZ22,PZ25,PZ26,PZ27)requiring a 39mm inside diameter opening
Replacement for most all of the bike brands,such as TaoTao,Buyang,Coolsport,Jonway,Znen,NST,BMX,Kazuma,Sunl,Roketa,AIM-EX etc
High performance removable and washable foam high flow air filter