NIMTEK PZ19 19mm Carburetor with Hand Choke for TAOTAO Sunl Honda CRF 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go Kart Brand New High Quality Aftermarket Carburetor. Fit Models:Chinese 70cc, 90cc, 100cc, 110cc and 125cc ATVs, Dirt Bikes and Scooters with 4 Stroke Engine, Honda CT 70 90 110 The air filter interface outside diameter:37mm Intake inside diameter:19mm