30mm Carburetor w/Cable Choke for 250cc ATVs Dirt Bikes Carb 250c Quad Pit Bike 250 CC Four Wheelers Taotao SunL Coolster SSR Roketa 30mm Carburetor w/Cable Choke. Top Quality Guaranteed. 30mm Carburetor w/Cable Choke for Chinese 250cc ATVs, Dirt Bikes Intake Inside Diameter: 30mm; Air Filter Mount Inside Diameter: 39mm Air Filter Mount Outside Diameter: 40mm; Bolt Hole Spacing Length: 48mm; Increase the horsepower and airflow for your bike, and have more fun with the power at your finger tips. Best Quality Guaranteed