Intake inside diameter: 12.5mm / 0.49″
Intake Bolt Hole Spacing: 37.5mm / 1.47″
Air filter Bolt Hole Spacing: 40mm / 1.57
Fits for 43cc 47cc 49cc 2-stroke engine Pocket Bikes, Dirt bikes, Super Bikes, Rocket Bike, Mini Quads, ATVs, Go-karts and G-Scooters X1 X2 X6 X8
Color: SilverMaterial: AluminumIntake inside diameter: 12.5mm / 0.49″Intake Bolt Hole Spacing: 37.5mm / 1.47″Air filter Bolt Hole Spacing: 40mm / 1.57Package included: 1 x Carburetor